100102202020221 has 4 divisors (see below), whose sum is σ = 133469602693632. Its totient is φ = 66734801346812.

The previous prime is 100102202020211. The next prime is 100102202020241. The reversal of 100102202020221 is 122020202201001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100102202020221 - 2¹⁸ = 100102201758077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100102202020221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100102202020201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16683700336701 + ... + 16683700336706.

It is an arithmetic number, because the mean of its divisors is an integer number (33367400673408).

Almost surely, 2^{100102202020221} is an apocalyptic number.

It is an amenable number.

100102202020221 is a deficient number, since it is larger than the sum of its proper divisors (33367400673411).

100102202020221 is an equidigital number, since it uses as much as digits as its factorization.

100102202020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33367400673410.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 100102202020221 its reverse (122020202201001), we get a palindrome (222122404221222).

The spelling of 100102202020221 in words is "one hundred trillion, one hundred two billion, two hundred two million, twenty thousand, two hundred twenty-one".