102011221112021 has 32 divisors (see below), whose sum is σ = 118321122447360. Its totient is φ = 87110901356544.

The previous prime is 102011221111889. The next prime is 102011221112023. The reversal of 102011221112021 is 120211122110201.

It is not a de Polignac number, because 102011221112021 - 2³⁴ = 101994041242837 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102011221112023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9207320 + ... + 16994033.

It is an arithmetic number, because the mean of its divisors is an integer number (3697535076480).

Almost surely, 2^{102011221112021} is an apocalyptic number.

It is an amenable number.

102011221112021 is a deficient number, since it is larger than the sum of its proper divisors (16309901335339).

102011221112021 is a wasteful number, since it uses less digits than its factorization.

102011221112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26201685.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 102011221112021 its reverse (120211122110201), we get a palindrome (222222343222222).

The spelling of 102011221112021 in words is "one hundred two trillion, eleven billion, two hundred twenty-one million, one hundred twelve thousand, twenty-one".