102202100202021 has 8 divisors (see below), whose sum is σ = 136277063276640. Its totient is φ = 68130935297712.

The previous prime is 102202100202019. The next prime is 102202100202101. The reversal of 102202100202021 is 120202001202201.

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

It is not a de Polignac number, because 102202100202021 - 2¹ = 102202100202019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102202100202421) 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, 949479790 + ... + 949587423.

It is an arithmetic number, because the mean of its divisors is an integer number (17034632909580).

Almost surely, 2^{102202100202021} is an apocalyptic number.

It is an amenable number.

102202100202021 is a deficient number, since it is larger than the sum of its proper divisors (34074963074619).

102202100202021 is a wasteful number, since it uses less digits than its factorization.

102202100202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1899085155.

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

Adding to 102202100202021 its reverse (120202001202201), we get a palindrome (222404101404222).

The spelling of 102202100202021 in words is "one hundred two trillion, two hundred two billion, one hundred million, two hundred two thousand, twenty-one".