222212121111102 has 16 divisors (see below), whose sum is σ = 444431415610512. Its totient is φ = 74069511472320.

The previous prime is 222212121111091. The next prime is 222212121111109. The reversal of 222212121111102 is 201111121212222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222212121111109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 298488433 + ... + 299231964.

It is an arithmetic number, because the mean of its divisors is an integer number (27776963475657).

Almost surely, 2^{222212121111102} is an apocalyptic number.

222212121111102 is an abundant number, since it is smaller than the sum of its proper divisors (222219294499410).

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

222212121111102 is a wasteful number, since it uses less digits than its factorization.

222212121111102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597782363.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 222212121111102 its reverse (201111121212222), we get a palindrome (423323242323324).

The spelling of 222212121111102 in words is "two hundred twenty-two trillion, two hundred twelve billion, one hundred twenty-one million, one hundred eleven thousand, one hundred two".