102222020121 has 8 divisors (see below), whose sum is σ = 146780336640. Its totient is φ = 62905858512.

The previous prime is 102222020113. The next prime is 102222020129. The reversal of 102222020121 is 121020222201.

It is an interprime number because it is at equal distance from previous prime (102222020113) and next prime (102222020129).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102222020121 - 2³ = 102222020113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102222020121.

It is not an unprimeable number, because it can be changed into a prime (102222020129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1310538681 + ... + 1310538758.

It is an arithmetic number, because the mean of its divisors is an integer number (18347542080).

Almost surely, 2^102222020121 is an apocalyptic number.

It is an amenable number.

102222020121 is a deficient number, since it is larger than the sum of its proper divisors (44558316519).

102222020121 is a wasteful number, since it uses less digits than its factorization.

102222020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2621077455.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 102222020121 its reverse (121020222201), we get a palindrome (223242242322).

The spelling of 102222020121 in words is "one hundred two billion, two hundred twenty-two million, twenty thousand, one hundred twenty-one".