221222202011022 has 16 divisors (see below), whose sum is σ = 442444835187072. Its totient is φ = 73740662142840.

The previous prime is 221222202011009. The next prime is 221222202011029. The reversal of 221222202011022 is 220110202222122.

221222202011022 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 221222202011022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221222202011029) 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, 11092948 + ... + 23780199.

It is an arithmetic number, because the mean of its divisors is an integer number (27652802199192).

Almost surely, 2^{221222202011022} is an apocalyptic number.

221222202011022 is an abundant number, since it is smaller than the sum of its proper divisors (221222633176050).

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

221222202011022 is a wasteful number, since it uses less digits than its factorization.

221222202011022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35930423.

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

Adding to 221222202011022 its reverse (220110202222122), we get a palindrome (441332404233144).

The spelling of 221222202011022 in words is "two hundred twenty-one trillion, two hundred twenty-two billion, two hundred two million, eleven thousand, twenty-two".