221012102222022 has 16 divisors (see below), whose sum is σ = 448621580630592. Its totient is φ = 72571138042920.

The previous prime is 221012102221957. The next prime is 221012102222027. The reversal of 221012102222022 is 220222201210122.

It is a self number, because there is not a number n which added to its sum of digits gives 221012102222022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221012102222027) 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, 274890674004 + ... + 274890674807.

It is an arithmetic number, because the mean of its divisors is an integer number (28038848789412).

Almost surely, 2^{221012102222022} is an apocalyptic number.

221012102222022 is an abundant number, since it is smaller than the sum of its proper divisors (227609478408570).

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

221012102222022 is a wasteful number, since it uses less digits than its factorization.

221012102222022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549781348883.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 221012102222022 its reverse (220222201210122), we get a palindrome (441234303432144).

The spelling of 221012102222022 in words is "two hundred twenty-one trillion, twelve billion, one hundred two million, two hundred twenty-two thousand, twenty-two".