220201023122 has 4 divisors (see below), whose sum is σ = 330301534686. Its totient is φ = 110100511560.

The previous prime is 220201023113. The next prime is 220201023143. The reversal of 220201023122 is 221320102022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221320102022 = 2 ⋅110660051011.

It can be written as a sum of positive squares in only one way, i.e., 131151898201 + 89049124921 = 362149^2 + 298411^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 220201023122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55050255779 + ... + 55050255782.

Almost surely, 2^220201023122 is an apocalyptic number.

220201023122 is a deficient number, since it is larger than the sum of its proper divisors (110100511564).

220201023122 is a wasteful number, since it uses less digits than its factorization.

220201023122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110100511563.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 220201023122 its reverse (221320102022), we get a palindrome (441521125144).

The spelling of 220201023122 in words is "two hundred twenty billion, two hundred one million, twenty-three thousand, one hundred twenty-two".