100100101212 has 48 divisors (see below), whose sum is σ = 268467712800. Its totient is φ = 32216123520.

The previous prime is 100100101181. The next prime is 100100101237. The reversal of 100100101212 is 212101001001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 100100101194 and 100100101203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15977089 + ... + 15983352.

It is an arithmetic number, because the mean of its divisors is an integer number (5593077350).

Almost surely, 2^100100101212 is an apocalyptic number.

100100101212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100100101212 is an abundant number, since it is smaller than the sum of its proper divisors (168367611588).

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

100100101212 is a wasteful number, since it uses less digits than its factorization.

100100101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31960483 (or 31960475 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 100100101212 its reverse (212101001001), we get a palindrome (312201102213).

The spelling of 100100101212 in words is "one hundred billion, one hundred million, one hundred one thousand, two hundred twelve".