220121232111013 has 16 divisors (see below), whose sum is σ = 227772238966272. Its totient is φ = 212579827920000.

The previous prime is 220121232110999. The next prime is 220121232111031. The reversal of 220121232111013 is 310111232121022.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 220121232111013 - 2⁵ = 220121232110981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220121232111043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13222120 + ... + 24800542.

It is an arithmetic number, because the mean of its divisors is an integer number (14235764935392).

Almost surely, 2^{220121232111013} is an apocalyptic number.

It is an amenable number.

220121232111013 is a deficient number, since it is larger than the sum of its proper divisors (7651006855259).

220121232111013 is a wasteful number, since it uses less digits than its factorization.

220121232111013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11583156.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 220121232111013 its reverse (310111232121022), we get a palindrome (530232464232035).

The spelling of 220121232111013 in words is "two hundred twenty trillion, one hundred twenty-one billion, two hundred thirty-two million, one hundred eleven thousand, thirteen".