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122021200988 = 22168891806223
BaseRepresentation
bin111000110100100000…
…1111100010001011100
3102122221212102021000022
41301221001330101130
53444344411412423
6132020013451312
711546541044441
oct1615101742134
9378855367008
10122021200988
1147826872365
121b7947a0b38
13b677b7569b
145c9795d9c8
153292654dc8
hex1c6907c45c

122021200988 has 12 divisors (see below), whose sum is σ = 213549863520. Its totient is φ = 61006954272.

The previous prime is 122021200969. The next prime is 122021200997. The reversal of 122021200988 is 889002120221.

It is a super-2 number, since 2×1220212009882 (a number of 23 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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 835556 + ... + 970667.

It is an arithmetic number, because the mean of its divisors is an integer number (17795821960).

Almost surely, 2122021200988 is an apocalyptic number.

It is an amenable number.

122021200988 is a deficient number, since it is larger than the sum of its proper divisors (91528662532).

122021200988 is a wasteful number, since it uses less digits than its factorization.

122021200988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1823116 (or 1823114 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 35.

The spelling of 122021200988 in words is "one hundred twenty-two billion, twenty-one million, two hundred thousand, nine hundred eighty-eight".

Divisors: 1 2 4 16889 33778 67556 1806223 3612446 7224892 30505300247 61010600494 122021200988