202102223221121 has 8 divisors (see below), whose sum is σ = 210889775958720. Its totient is φ = 193314712113072.

The previous prime is 202102223221079. The next prime is 202102223221159. The reversal of 202102223221121 is 121122322201202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202102223221121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202102223221181) 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, 276926 + ... + 20106743.

It is an arithmetic number, because the mean of its divisors is an integer number (26361221994840).

Almost surely, 2^{202102223221121} is an apocalyptic number.

It is an amenable number.

202102223221121 is a deficient number, since it is larger than the sum of its proper divisors (8787552737599).

202102223221121 is a wasteful number, since it uses less digits than its factorization.

202102223221121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20814775.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 202102223221121 its reverse (121122322201202), we get a palindrome (323224545422323).

The spelling of 202102223221121 in words is "two hundred two trillion, one hundred two billion, two hundred twenty-three million, two hundred twenty-one thousand, one hundred twenty-one".