221121100120222 has 16 divisors (see below), whose sum is σ = 334306902268944. Its totient is φ = 109685937400000.

The previous prime is 221121100120181. The next prime is 221121100120303. The reversal of 221121100120222 is 222021001121122.

It is a self number, because there is not a number n which added to its sum of digits gives 221121100120222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116902279 + ... + 118778722.

It is an arithmetic number, because the mean of its divisors is an integer number (20894181391809).

Almost surely, 2^{221121100120222} is an apocalyptic number.

221121100120222 is a deficient number, since it is larger than the sum of its proper divisors (113185802148722).

221121100120222 is a wasteful number, since it uses less digits than its factorization.

221121100120222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235684715.

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

Adding to 221121100120222 its reverse (222021001121122), we get a palindrome (443142101241344).

The spelling of 221121100120222 in words is "two hundred twenty-one trillion, one hundred twenty-one billion, one hundred million, one hundred twenty thousand, two hundred twenty-two".