1002202101121 has 8 divisors (see below), whose sum is σ = 1094495903424. Its totient is φ = 912079917840.

The previous prime is 1002202101113. The next prime is 1002202101143. The reversal of 1002202101121 is 1211012022001.

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

It is not a de Polignac number, because 1002202101121 - 2³ = 1002202101113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002202101221) 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, 542903791 + ... + 542905636.

It is an arithmetic number, because the mean of its divisors is an integer number (136811987928).

Almost surely, 2^{1002202101121} is an apocalyptic number.

It is an amenable number.

1002202101121 is a deficient number, since it is larger than the sum of its proper divisors (92293802303).

1002202101121 is a wasteful number, since it uses less digits than its factorization.

1002202101121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085809511.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1002202101121 its reverse (1211012022001), we get a palindrome (2213214123122).

The spelling of 1002202101121 in words is "one trillion, two billion, two hundred two million, one hundred one thousand, one hundred twenty-one".