100021001222112 has 96 divisors (see below), whose sum is σ = 270266824612512. Its totient is φ = 32374041083904.

The previous prime is 100021001222101. The next prime is 100021001222117. The reversal of 100021001222112 is 211222100120001.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 100021001222091 and 100021001222100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100021001222117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100837473 + ... + 101824544.

It is an arithmetic number, because the mean of its divisors is an integer number (2815279423047).

Almost surely, 2^{100021001222112} is an apocalyptic number.

100021001222112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100021001222112 is an abundant number, since it is smaller than the sum of its proper divisors (170245823390400).

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

100021001222112 is a wasteful number, since it uses less digits than its factorization.

100021001222112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202662180 (or 202662172 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 100021001222112 its reverse (211222100120001), we get a palindrome (311243101342113).

The spelling of 100021001222112 in words is "one hundred trillion, twenty-one billion, one million, two hundred twenty-two thousand, one hundred twelve".