221220022022022 has 16 divisors (see below), whose sum is σ = 442442025253872. Its totient is φ = 73739677139040.

The previous prime is 221220022021981. The next prime is 221220022022023. The reversal of 221220022022022 is 220220220022122.

221220022022022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 221220022022022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221220022022023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81096873 + ... + 83780324.

It is an arithmetic number, because the mean of its divisors is an integer number (27652626578367).

Almost surely, 2^{221220022022022} is an apocalyptic number.

221220022022022 is an abundant number, since it is smaller than the sum of its proper divisors (221222003231850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221220022022022 is a wasteful number, since it uses less digits than its factorization.

221220022022022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165100823.

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 221220022022022 its reverse (220220220022122), we get a palindrome (441440242044144).

The spelling of 221220022022022 in words is "two hundred twenty-one trillion, two hundred twenty billion, twenty-two million, twenty-two thousand, twenty-two".