102201021112021 has 64 divisors (see below), whose sum is σ = 118528559815680. Its totient is φ = 87326623687680.

The previous prime is 102201021111887. The next prime is 102201021112103. The reversal of 102201021112021 is 120211120102201.

It is not a de Polignac number, because 102201021112021 - 2⁹ = 102201021111509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102201021111986 and 102201021112004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102201021112621) 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, 3521608491 + ... + 3521637511.

It is an arithmetic number, because the mean of its divisors is an integer number (1852008747120).

Almost surely, 2^{102201021112021} is an apocalyptic number.

It is an amenable number.

102201021112021 is a deficient number, since it is larger than the sum of its proper divisors (16327538703659).

102201021112021 is a wasteful number, since it uses less digits than its factorization.

102201021112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30206.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 102201021112021 its reverse (120211120102201), we get a palindrome (222412141214222).

The spelling of 102201021112021 in words is "one hundred two trillion, two hundred one billion, twenty-one million, one hundred twelve thousand, twenty-one".