220220210011021 has 32 divisors (see below), whose sum is σ = 251261054263296. Its totient is φ = 191199038760000.

The previous prime is 220220210011001. The next prime is 220220210011027. The reversal of 220220210011021 is 120110012022022.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 220220210011021 - 2²¹ = 220220207913869 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220220210010986 and 220220210011004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220220210011027) 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, 159496 + ... + 20987278.

It is an arithmetic number, because the mean of its divisors is an integer number (7851907945728).

Almost surely, 2^{220220210011021} is an apocalyptic number.

It is an amenable number.

220220210011021 is a deficient number, since it is larger than the sum of its proper divisors (31040844252275).

220220210011021 is a wasteful number, since it uses less digits than its factorization.

220220210011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20828233.

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

Adding to 220220210011021 its reverse (120110012022022), we get a palindrome (340330222033043).

It can be divided in two parts, 22022021001 and 1021, that added together give a palindrome (22022022022).

The spelling of 220220210011021 in words is "two hundred twenty trillion, two hundred twenty billion, two hundred ten million, eleven thousand, twenty-one".