100100122212 has 24 divisors (see below), whose sum is σ = 233778738816. Its totient is φ = 33336452128.

The previous prime is 100100122201. The next prime is 100100122229. The reversal of 100100122212 is 212221001001.

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, 3768123 + ... + 3794594.

It is an arithmetic number, because the mean of its divisors is an integer number (9740780784).

Almost surely, 2^100100122212 is an apocalyptic number.

100100122212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100100122212 is an abundant number, since it is smaller than the sum of its proper divisors (133678616604).

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

100100122212 is a wasteful number, since it uses less digits than its factorization.

100100122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7563827 (or 7563825 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 100100122212 its reverse (212221001001), we get a palindrome (312321123213).

The spelling of 100100122212 in words is "one hundred billion, one hundred million, one hundred twenty-two thousand, two hundred twelve".