202220120121 has 8 divisors (see below), whose sum is σ = 269724777120. Its totient is φ = 134764438272.

The previous prime is 202220120101. The next prime is 202220120131. The reversal of 202220120121 is 121021022202.

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

It is not a de Polignac number, because 202220120121 - 2¹⁴ = 202220103737 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 202220120121.

It is not an unprimeable number, because it can be changed into a prime (202220120101) 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, 12234151 + ... + 12250668.

It is an arithmetic number, because the mean of its divisors is an integer number (33715597140).

Almost surely, 2^202220120121 is an apocalyptic number.

It is an amenable number.

202220120121 is a deficient number, since it is larger than the sum of its proper divisors (67504656999).

202220120121 is a wasteful number, since it uses less digits than its factorization.

202220120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24487575.

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

Adding to 202220120121 its reverse (121021022202), we get a palindrome (323241142323).

The spelling of 202220120121 in words is "two hundred two billion, two hundred twenty million, one hundred twenty thousand, one hundred twenty-one".