22112221211110 has 16 divisors (see below), whose sum is σ = 41174480876400. Its totient is φ = 8539892329696.

The previous prime is 22112221211033. The next prime is 22112221211111. The reversal of 22112221211110 is 1111212221122.

It is a happy number.

It is a super-3 number, since 3×22112221211110³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22112221211111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38124519040 + ... + 38124519619.

It is an arithmetic number, because the mean of its divisors is an integer number (2573405054775).

Almost surely, 2^{22112221211110} is an apocalyptic number.

22112221211110 is a deficient number, since it is larger than the sum of its proper divisors (19062259665290).

22112221211110 is a wasteful number, since it uses less digits than its factorization.

22112221211110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76249038695.

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

Adding to 22112221211110 its reverse (1111212221122), we get a palindrome (23223433432232).

The spelling of 22112221211110 in words is "twenty-two trillion, one hundred twelve billion, two hundred twenty-one million, two hundred eleven thousand, one hundred ten".