100100021020212 has 12 divisors (see below), whose sum is σ = 233566715713856. Its totient is φ = 33366673673400.

The previous prime is 100100021020151. The next prime is 100100021020229. The reversal of 100100021020212 is 212020120001001.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 8341668418351 = 100100021020212 / (1 + 0 + 0 + 1 + 0 + 0 + 0 + 2 + 1 + 0 + 2 + 0 + 2 + 1 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4170834209164 + ... + 4170834209187.

Almost surely, 2^{100100021020212} is an apocalyptic number.

100100021020212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100100021020212 is an abundant number, since it is smaller than the sum of its proper divisors (133466694693644).

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

100100021020212 is a wasteful number, since it uses less digits than its factorization.

100100021020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8341668418358 (or 8341668418356 counting only the distinct ones).

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

Adding to 100100021020212 its reverse (212020120001001), we get a palindrome (312120141021213).

The spelling of 100100021020212 in words is "one hundred trillion, one hundred billion, twenty-one million, twenty thousand, two hundred twelve".