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122002111212 = 22319535096979
BaseRepresentation
bin111000110011111100…
…1000111101011101100
3102122220112111101202120
41301213321013223230
53444330020024322
6132014052352540
711546216556222
oct1614771075354
9378815441676
10122002111212
1147817013993
121b78a315750
13b673c20667
145c951d0b12
153290b33a5c
hex1c67e47aec

122002111212 has 24 divisors (see below), whose sum is σ = 299654308800. Its totient is φ = 38526982416.

The previous prime is 122002111207. The next prime is 122002111223. The reversal of 122002111212 is 212111200221.

It is a super-2 number, since 2×1220021112122 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122002111191 and 122002111200.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267548262 + ... + 267548717.

It is an arithmetic number, because the mean of its divisors is an integer number (12485596200).

Almost surely, 2122002111212 is an apocalyptic number.

122002111212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122002111212 is an abundant number, since it is smaller than the sum of its proper divisors (177652197588).

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

122002111212 is a wasteful number, since it uses less digits than its factorization.

122002111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535097005 (or 535097003 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 122002111212 its reverse (212111200221), we get a palindrome (334113311433).

The spelling of 122002111212 in words is "one hundred twenty-two billion, two million, one hundred eleven thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 535096979 1070193958 1605290937 2140387916 3210581874 6421163748 10166842601 20333685202 30500527803 40667370404 61001055606 122002111212