220122110021221 has 8 divisors (see below), whose sum is σ = 240588871674624. Its totient is φ = 200490726394560.

The previous prime is 220122110021213. The next prime is 220122110021237. The reversal of 220122110021221 is 122120011221022.

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 220122110021221 - 2³ = 220122110021213 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 (220122110421221) 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, 208844506135 + ... + 208844507188.

It is an arithmetic number, because the mean of its divisors is an integer number (30073608959328).

Almost surely, 2^{220122110021221} is an apocalyptic number.

It is an amenable number.

220122110021221 is a deficient number, since it is larger than the sum of its proper divisors (20466761653403).

220122110021221 is a wasteful number, since it uses less digits than its factorization.

220122110021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417689013371.

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

Adding to 220122110021221 its reverse (122120011221022), we get a palindrome (342242121242243).

The spelling of 220122110021221 in words is "two hundred twenty trillion, one hundred twenty-two billion, one hundred ten million, twenty-one thousand, two hundred twenty-one".