220012020122221 has 16 divisors (see below), whose sum is σ = 220750112744640. Its totient is φ = 219274790515200.

The previous prime is 220012020122207. The next prime is 220012020122243. The reversal of 220012020122221 is 122221020210022.

It is a cyclic number.

It is not a de Polignac number, because 220012020122221 - 2⁷ = 220012020122093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220012020122201) 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, 6850313055 + ... + 6850345171.

It is an arithmetic number, because the mean of its divisors is an integer number (13796882046540).

Almost surely, 2^{220012020122221} is an apocalyptic number.

It is an amenable number.

220012020122221 is a deficient number, since it is larger than the sum of its proper divisors (738092622419).

220012020122221 is a wasteful number, since it uses less digits than its factorization.

220012020122221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44844.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 220012020122221 its reverse (122221020210022), we get a palindrome (342233040332243).

The spelling of 220012020122221 in words is "two hundred twenty trillion, twelve billion, twenty million, one hundred twenty-two thousand, two hundred twenty-one".