102102201102021 has 16 divisors (see below), whose sum is σ = 138060384357888. Its totient is φ = 67106169068400.

The previous prime is 102102201101969. The next prime is 102102201102043. The reversal of 102102201102021 is 120201102201201.

It is not a de Polignac number, because 102102201102021 - 2⁷ = 102102201101893 is a prime.

It is a super-3 number, since 3×102102201102021³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102102201102821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7238431 + ... + 16018716.

It is an arithmetic number, because the mean of its divisors is an integer number (8628774022368).

Almost surely, 2^{102102201102021} is an apocalyptic number.

It is an amenable number.

102102201102021 is a deficient number, since it is larger than the sum of its proper divisors (35958183255867).

102102201102021 is a wasteful number, since it uses less digits than its factorization.

102102201102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23277832.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 102102201102021 its reverse (120201102201201), we get a palindrome (222303303303222).

The spelling of 102102201102021 in words is "one hundred two trillion, one hundred two billion, two hundred one million, one hundred two thousand, twenty-one".