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120122112121212 = 22313446717444331
BaseRepresentation
bin11011010100000000011011…
…110100101001100101111100
3120202022120011112021112001110
4123110000123310221211330
5111221040041200334322
61103251200403242020
734205351630116305
oct3324003364514574
9522276145245043
10120122112121212
1135302557796253
1211580578379310
13520460b0870b6
142193d26ad97ac
15dd49b9c69c0c
hex6d401bd2997c

120122112121212 has 24 divisors (see below), whose sum is σ = 280285174374912. Its totient is φ = 40040668884400.

The previous prime is 120122112121181. The next prime is 120122112121243. The reversal of 120122112121212 is 212121211221021.

It is an interprime number because it is at equal distance from previous prime (120122112121181) and next prime (120122112121243).

It is a super-2 number, since 2×1201221121212122 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12413887 + ... + 19858217.

It is an arithmetic number, because the mean of its divisors is an integer number (11678548932288).

Almost surely, 2120122112121212 is an apocalyptic number.

120122112121212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120122112121212 is an abundant number, since it is smaller than the sum of its proper divisors (160163062253700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120122112121212 is a wasteful number, since it uses less digits than its factorization.

120122112121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8789009 (or 8789007 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 120122112121212 its reverse (212121211221021), we get a palindrome (332243323342233).

The spelling of 120122112121212 in words is "one hundred twenty trillion, one hundred twenty-two billion, one hundred twelve million, one hundred twenty-one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 1344671 2689342 4034013 5378684 7444331 8068026 14888662 16136052 22332993 29777324 44665986 89331972 10010176010101 20020352020202 30030528030303 40040704040404 60061056060606 120122112121212