221122110211102 has 4 divisors (see below), whose sum is σ = 331683165316656. Its totient is φ = 110561055105550.

The previous prime is 221122110211031. The next prime is 221122110211201. The reversal of 221122110211102 is 201112011221122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 221122110211102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55280527552774 + ... + 55280527552777.

It is an arithmetic number, because the mean of its divisors is an integer number (82920791329164).

Almost surely, 2^{221122110211102} is an apocalyptic number.

221122110211102 is a deficient number, since it is larger than the sum of its proper divisors (110561055105554).

221122110211102 is a wasteful number, since it uses less digits than its factorization.

221122110211102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110561055105553.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 221122110211102 its reverse (201112011221122), we get a palindrome (422234121432224).

The spelling of 221122110211102 in words is "two hundred twenty-one trillion, one hundred twenty-two billion, one hundred ten million, two hundred eleven thousand, one hundred two".