111222122022110 has 128 divisors (see below), whose sum is σ = 230320348397568. Its totient is φ = 38293897104000.

The previous prime is 111222122022059. The next prime is 111222122022131. The reversal of 111222122022110 is 11220221222111.

It is a super-2 number, since 2×111222122022110² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 474762905 + ... + 474997115.

It is an arithmetic number, because the mean of its divisors is an integer number (1799377721856).

Almost surely, 2^{111222122022110} is an apocalyptic number.

111222122022110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111222122022110 is an abundant number, since it is smaller than the sum of its proper divisors (119098226375458).

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

111222122022110 is a wasteful number, since it uses less digits than its factorization.

111222122022110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237270.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 111222122022110 its reverse (11220221222111), we get a palindrome (122442343244221).

The spelling of 111222122022110 in words is "one hundred eleven trillion, two hundred twenty-two billion, one hundred twenty-two million, twenty-two thousand, one hundred ten".