222121343121222 has 32 divisors (see below), whose sum is σ = 448642881667584. Its totient is φ = 73307087532000.

The previous prime is 222121343121217. The next prime is 222121343121253.

It is a happy number.

222121343121222 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 222121343121222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201652947 + ... + 202751457.

It is an arithmetic number, because the mean of its divisors is an integer number (14020090052112).

Almost surely, 2^{222121343121222} is an apocalyptic number.

222121343121222 is an abundant number, since it is smaller than the sum of its proper divisors (226521538546362).

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

222121343121222 is a wasteful number, since it uses less digits than its factorization.

222121343121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1432284.

The product of its digits is 9216, while the sum is 30.

It can be divided in two parts, 222121 and 343121222, that added together give a palindrome (343343343).

The spelling of 222121343121222 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, three hundred forty-three million, one hundred twenty-one thousand, two hundred twenty-two".