100120213212 has 48 divisors (see below), whose sum is σ = 235941404160. Its totient is φ = 33042183552.

The previous prime is 100120213187. The next prime is 100120213217. The reversal of 100120213212 is 212312021001.

It is a junction number, because it is equal to n+sod(n) for n = 100120213191 and 100120213200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100120213217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 542733 + ... + 703419.

It is an arithmetic number, because the mean of its divisors is an integer number (4915445920).

Almost surely, 2^100120213212 is an apocalyptic number.

100120213212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100120213212 is an abundant number, since it is smaller than the sum of its proper divisors (135821190948).

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

100120213212 is a wasteful number, since it uses less digits than its factorization.

100120213212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161210 (or 161208 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 100120213212 its reverse (212312021001), we get a palindrome (312432234213).

The spelling of 100120213212 in words is "one hundred billion, one hundred twenty million, two hundred thirteen thousand, two hundred twelve".