102223021200021 has 64 divisors (see below), whose sum is σ = 156050912793600. Its totient is φ = 66106301893632.

The previous prime is 102223021199983. The next prime is 102223021200037. The reversal of 102223021200021 is 120002120322201.

102223021200021 is a `hidden beast` number, since 1 + 0 + 222 + 302 + 120 + 0 + 0 + 21 = 666.

It is not a de Polignac number, because 102223021200021 - 2²² = 102223017005717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102223021199967 and 102223021200003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102223021200721) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 71510541 + ... + 72926013.

It is an arithmetic number, because the mean of its divisors is an integer number (2438295512400).

Almost surely, 2^{102223021200021} is an apocalyptic number.

It is an amenable number.

102223021200021 is a deficient number, since it is larger than the sum of its proper divisors (53827891593579).

102223021200021 is a wasteful number, since it uses less digits than its factorization.

102223021200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416107 (or 1416101 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 102223021200021 its reverse (120002120322201), we get a palindrome (222225141522222).

The spelling of 102223021200021 in words is "one hundred two trillion, two hundred twenty-three billion, twenty-one million, two hundred thousand, twenty-one".