111122222790 has 32 divisors (see below), whose sum is σ = 270346673376. Its totient is φ = 29226666240.

The previous prime is 111122222711. The next prime is 111122222791. The reversal of 111122222790 is 97222221111.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111122222791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25368181 + ... + 25372560.

It is an arithmetic number, because the mean of its divisors is an integer number (8448333543).

Almost surely, 2^111122222790 is an apocalyptic number.

111122222790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111122222790 is an abundant number, since it is smaller than the sum of its proper divisors (159224450586).

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

111122222790 is a wasteful number, since it uses less digits than its factorization.

111122222790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50740824.

The product of its (nonzero) digits is 2016, while the sum is 30.

The spelling of 111122222790 in words is "one hundred eleven billion, one hundred twenty-two million, two hundred twenty-two thousand, seven hundred ninety".