220211313021 has 72 divisors (see below), whose sum is σ = 372530340000. Its totient is φ = 124981375680.

The previous prime is 220211313011. The next prime is 220211313079. The reversal of 220211313021 is 120313112022.

It is not a de Polignac number, because 220211313021 - 2⁵ = 220211312989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220211312985 and 220211313003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220211313011) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 118328631 + ... + 118330491.

It is an arithmetic number, because the mean of its divisors is an integer number (5174032500).

Almost surely, 2^220211313021 is an apocalyptic number.

220211313021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

220211313021 is a deficient number, since it is larger than the sum of its proper divisors (152319026979).

220211313021 is a wasteful number, since it uses less digits than its factorization.

220211313021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3559 (or 3549 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 220211313021 its reverse (120313112022), we get a palindrome (340524425043).

The spelling of 220211313021 in words is "two hundred twenty billion, two hundred eleven million, three hundred thirteen thousand, twenty-one".