220010122010021 has 8 divisors (see below), whose sum is σ = 252483459522624. Its totient is φ = 187797614518080.

The previous prime is 220010122010011. The next prime is 220010122010059. The reversal of 220010122010021 is 120010221010022.

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

It is not a de Polignac number, because 220010122010021 - 2⁶ = 220010122009957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220010122009978 and 220010122010005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220010122010011) 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, 65207503355 + ... + 65207506728.

It is an arithmetic number, because the mean of its divisors is an integer number (31560432440328).

Almost surely, 2^{220010122010021} is an apocalyptic number.

It is an amenable number.

220010122010021 is a deficient number, since it is larger than the sum of its proper divisors (32473337512603).

220010122010021 is a wasteful number, since it uses less digits than its factorization.

220010122010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130415010331.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 220010122010021 its reverse (120010221010022), we get a palindrome (340020343020043).

Subtracting from 220010122010021 its reverse (120010221010022), we obtain a palindrome (99999900999999).

The spelling of 220010122010021 in words is "two hundred twenty trillion, ten billion, one hundred twenty-two million, ten thousand, twenty-one".