102021231020122 has 64 divisors (see below), whose sum is σ = 160542472273920. Its totient is φ = 48568900665600.

The previous prime is 102021231020081. The next prime is 102021231020131. The reversal of 102021231020122 is 221020132120201.

It is a super-2 number, since 2×102021231020122² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102021231020122.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 453422053 + ... + 453646999.

It is an arithmetic number, because the mean of its divisors is an integer number (2508476129280).

Almost surely, 2^{102021231020122} is an apocalyptic number.

102021231020122 is a deficient number, since it is larger than the sum of its proper divisors (58521241253798).

102021231020122 is a wasteful number, since it uses less digits than its factorization.

102021231020122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225587.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 102021231020122 its reverse (221020132120201), we get a palindrome (323041363140323).

The spelling of 102021231020122 in words is "one hundred two trillion, twenty-one billion, two hundred thirty-one million, twenty thousand, one hundred twenty-two".