100231122202021 has 8 divisors (see below), whose sum is σ = 105577588380320. Its totient is φ = 94891770419472.

The previous prime is 100231122202007. The next prime is 100231122202067. The reversal of 100231122202021 is 120202221132001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-100231122202021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100231122202021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100231122205021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1778570010 + ... + 1778626363.

It is an arithmetic number, because the mean of its divisors is an integer number (13197198547540).

Almost surely, 2^{100231122202021} is an apocalyptic number.

It is an amenable number.

100231122202021 is a deficient number, since it is larger than the sum of its proper divisors (5346466178299).

100231122202021 is a wasteful number, since it uses less digits than its factorization.

100231122202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3557197875.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 100231122202021 its reverse (120202221132001), we get a palindrome (220433343334022).

The spelling of 100231122202021 in words is "one hundred trillion, two hundred thirty-one billion, one hundred twenty-two million, two hundred two thousand, twenty-one".