202221120021121 has 8 divisors (see below), whose sum is σ = 202399829334944. Its totient is φ = 202042479068640.

The previous prime is 202221120021077. The next prime is 202221120021251. The reversal of 202221120021121 is 121120021122202.

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

It is a cyclic number.

It is not a de Polignac number, because 202221120021121 - 2³³ = 202212530086529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202221120081121) 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, 11170575 + ... + 23004868.

It is an arithmetic number, because the mean of its divisors is an integer number (25299978666868).

Almost surely, 2^{202221120021121} is an apocalyptic number.

It is an amenable number.

202221120021121 is a deficient number, since it is larger than the sum of its proper divisors (178709313823).

202221120021121 is a wasteful number, since it uses less digits than its factorization.

202221120021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34180671.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 202221120021121 its reverse (121120021122202), we get a palindrome (323341141143323).

The spelling of 202221120021121 in words is "two hundred two trillion, two hundred twenty-one billion, one hundred twenty million, twenty-one thousand, one hundred twenty-one".