220012112220121 has 8 divisors (see below), whose sum is σ = 237047306297984. Its totient is φ = 202992801777360.

The previous prime is 220012112220067. The next prime is 220012112220161. The reversal of 220012112220121 is 121022211210022.

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 220012112220121 - 2³⁷ = 219874673266649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220012112220161) 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, 3970880001 + ... + 3970935406.

It is an arithmetic number, because the mean of its divisors is an integer number (29630913287248).

Almost surely, 2^{220012112220121} is an apocalyptic number.

It is an amenable number.

220012112220121 is a deficient number, since it is larger than the sum of its proper divisors (17035194077863).

220012112220121 is a wasteful number, since it uses less digits than its factorization.

220012112220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7941817551.

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

Adding to 220012112220121 its reverse (121022211210022), we get a palindrome (341034323430143).

The spelling of 220012112220121 in words is "two hundred twenty trillion, twelve billion, one hundred twelve million, two hundred twenty thousand, one hundred twenty-one".