220120100022021 has 8 divisors (see below), whose sum is σ = 293826603438144. Its totient is φ = 146580164976960.

The previous prime is 220120100021999. The next prime is 220120100022023. The reversal of 220120100022021 is 120220001021022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 220120100022021 - 2⁶ = 220120100021957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220120100022023) 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, 41642089681 + ... + 41642094966.

It is an arithmetic number, because the mean of its divisors is an integer number (36728325429768).

Almost surely, 2^{220120100022021} is an apocalyptic number.

It is an amenable number.

220120100022021 is a deficient number, since it is larger than the sum of its proper divisors (73706503416123).

220120100022021 is an equidigital number, since it uses as much as digits as its factorization.

220120100022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83284185531.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 220120100022021 its reverse (120220001021022), we get a palindrome (340340101043043).

Subtracting from 220120100022021 its reverse (120220001021022), we obtain a palindrome (99900099000999).

The spelling of 220120100022021 in words is "two hundred twenty trillion, one hundred twenty billion, one hundred million, twenty-two thousand, twenty-one".