220231012021 has 16 divisors (see below), whose sum is σ = 236115298944. Its totient is φ = 204674770944.

The previous prime is 220231011937. The next prime is 220231012033. The reversal of 220231012021 is 120210132022.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 220231012021 - 2⁷ = 220231011893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220231011986 and 220231012004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220231412021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2807296 + ... + 2884678.

It is an arithmetic number, because the mean of its divisors is an integer number (14757206184).

Almost surely, 2^220231012021 is an apocalyptic number.

It is an amenable number.

220231012021 is a deficient number, since it is larger than the sum of its proper divisors (15884286923).

220231012021 is a wasteful number, since it uses less digits than its factorization.

220231012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79500.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 220231012021 its reverse (120210132022), we get a palindrome (340441144043).

The spelling of 220231012021 in words is "two hundred twenty billion, two hundred thirty-one million, twelve thousand, twenty-one".