100111220120212 has 48 divisors (see below), whose sum is σ = 207362840146560. Its totient is φ = 41378096898432.

The previous prime is 100111220120203. The next prime is 100111220120321. The reversal of 100111220120212 is 212021022111001.

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, 69578458 + ... + 71002705.

It is an arithmetic number, because the mean of its divisors is an integer number (4320059169720).

Almost surely, 2^{100111220120212} is an apocalyptic number.

It is an amenable number.

100111220120212 is an abundant number, since it is smaller than the sum of its proper divisors (107251620026348).

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

100111220120212 is a wasteful number, since it uses less digits than its factorization.

100111220120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140582080 (or 140582078 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 100111220120212 its reverse (212021022111001), we get a palindrome (312132242231213).

The spelling of 100111220120212 in words is "one hundred trillion, one hundred eleven billion, two hundred twenty million, one hundred twenty thousand, two hundred twelve".