102201110211021 has 16 divisors (see below), whose sum is σ = 144426917318400. Its totient is φ = 64062632567808.

The previous prime is 102201110210939. The next prime is 102201110211073. The reversal of 102201110211021 is 120112011102201.

It is a happy number.

It is not a de Polignac number, because 102201110211021 - 2¹⁹ = 102201109686733 is a prime.

It is a super-2 number, since 2×102201110211021² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102201110211821) 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, 992982901 + ... + 993085818.

It is an arithmetic number, because the mean of its divisors is an integer number (9026682332400).

Almost surely, 2^{102201110211021} is an apocalyptic number.

It is an amenable number.

102201110211021 is a deficient number, since it is larger than the sum of its proper divisors (42225807107379).

102201110211021 is a wasteful number, since it uses less digits than its factorization.

102201110211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1986069748.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 102201110211021 its reverse (120112011102201), we get a palindrome (222313121313222).

The spelling of 102201110211021 in words is "one hundred two trillion, two hundred one billion, one hundred ten million, two hundred eleven thousand, twenty-one".