102202000021 has 8 divisors (see below), whose sum is σ = 112203239904. Its totient is φ = 92319118320.

The previous prime is 102202000007. The next prime is 102202000073. The reversal of 102202000021 is 120000202201.

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

It is not a de Polignac number, because 102202000021 - 2¹⁵ = 102201967253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102201999971 and 102202000007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102202000081) 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, 29587735 + ... + 29591188.

It is an arithmetic number, because the mean of its divisors is an integer number (14025404988).

Almost surely, 2^102202000021 is an apocalyptic number.

102202000021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102202000021 is a deficient number, since it is larger than the sum of its proper divisors (10001239883).

102202000021 is a wasteful number, since it uses less digits than its factorization.

102202000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59179091.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 102202000021 its reverse (120000202201), we get a palindrome (222202202222).

The spelling of 102202000021 in words is "one hundred two billion, two hundred two million, twenty-one", and thus it is an aban number.