220121134204 has 12 divisors (see below), whose sum is σ = 407871513504. Its totient is φ = 103586416064.

The previous prime is 220121134201. The next prime is 220121134213. The reversal of 220121134204 is 402431121022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220121134201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1618537684 + ... + 1618537819.

It is an arithmetic number, because the mean of its divisors is an integer number (33989292792).

Almost surely, 2^220121134204 is an apocalyptic number.

It is an amenable number.

220121134204 is a deficient number, since it is larger than the sum of its proper divisors (187750379300).

220121134204 is a wasteful number, since it uses less digits than its factorization.

220121134204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3237075524 (or 3237075522 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 220121134204 its reverse (402431121022), we get a palindrome (622552255226).

The spelling of 220121134204 in words is "two hundred twenty billion, one hundred twenty-one million, one hundred thirty-four thousand, two hundred four".