220211012020021 has 32 divisors (see below), whose sum is σ = 246715678471680. Its totient is φ = 194822590132800.

The previous prime is 220211012019991. The next prime is 220211012020061. The reversal of 220211012020021 is 120020210112022.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 220211012020021 - 2¹¹ = 220211012017973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220211012019977 and 220211012020004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220211012020061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142992511 + ... + 144524323.

It is an arithmetic number, because the mean of its divisors is an integer number (7709864952240).

Almost surely, 2^{220211012020021} is an apocalyptic number.

It is an amenable number.

220211012020021 is a deficient number, since it is larger than the sum of its proper divisors (26504666451659).

220211012020021 is a wasteful number, since it uses less digits than its factorization.

220211012020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1532977.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 220211012020021 its reverse (120020210112022), we get a palindrome (340231222132043).

The spelling of 220211012020021 in words is "two hundred twenty trillion, two hundred eleven billion, twelve million, twenty thousand, twenty-one".