221010202112122 has 32 divisors (see below), whose sum is σ = 357578918968320. Its totient is φ = 102105898202880.

The previous prime is 221010202112101. The next prime is 221010202112123. The reversal of 221010202112122 is 221211202010122.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 221010202112122.

It is not an unprimeable number, because it can be changed into a prime (221010202112123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15311898 + ... + 26009125.

It is an arithmetic number, because the mean of its divisors is an integer number (11174341217760).

Almost surely, 2^{221010202112122} is an apocalyptic number.

221010202112122 is a deficient number, since it is larger than the sum of its proper divisors (136568716856198).

221010202112122 is a wasteful number, since it uses less digits than its factorization.

221010202112122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41324518.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 221010202112122 its reverse (221211202010122), we get a palindrome (442221404122244).

The spelling of 221010202112122 in words is "two hundred twenty-one trillion, ten billion, two hundred two million, one hundred twelve thousand, one hundred twenty-two".