100102111212 has 24 divisors (see below), whose sum is σ = 235884185712. Its totient is φ = 33037000000.

The previous prime is 100102111201. The next prime is 100102111223. The reversal of 100102111212 is 212111201001.

It is an interprime number because it is at equal distance from previous prime (100102111201) and next prime (100102111223).

It is a super-2 number, since 2×100102111212² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 41295039 + ... + 41297462.

It is an arithmetic number, because the mean of its divisors is an integer number (9828507738).

Almost surely, 2^100102111212 is an apocalyptic number.

100102111212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100102111212 is an abundant number, since it is smaller than the sum of its proper divisors (135782074500).

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

100102111212 is a wasteful number, since it uses less digits than its factorization.

100102111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82592609 (or 82592607 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 100102111212 its reverse (212111201001), we get a palindrome (312213312213).

The spelling of 100102111212 in words is "one hundred billion, one hundred two million, one hundred eleven thousand, two hundred twelve".