220211021211021 has 12 divisors (see below), whose sum is σ = 318208260895200. Its totient is φ = 146749343765640.

The previous prime is 220211021211001. The next prime is 220211021211043. The reversal of 220211021211021 is 120112120112022.

220211021211021 is a `hidden beast` number, since 220 + 211 + 0 + 2 + 1 + 211 + 0 + 21 = 666.

It is not a de Polignac number, because 220211021211021 - 2²² = 220211017016717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220211021210985 and 220211021211003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220211021211001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4833618321 + ... + 4833663878.

It is an arithmetic number, because the mean of its divisors is an integer number (26517355074600).

Almost surely, 2^{220211021211021} is an apocalyptic number.

It is an amenable number.

220211021211021 is a deficient number, since it is larger than the sum of its proper divisors (97997239684179).

220211021211021 is a wasteful number, since it uses less digits than its factorization.

220211021211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9667284736 (or 9667284733 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 220211021211021 its reverse (120112120112022), we get a palindrome (340323141323043).

The spelling of 220211021211021 in words is "two hundred twenty trillion, two hundred eleven billion, twenty-one million, two hundred eleven thousand, twenty-one".