111369222257 has 8 divisors (see below), whose sum is σ = 117930169800. Its totient is φ = 104809365504.

The previous prime is 111369222241. The next prime is 111369222269. The reversal of 111369222257 is 752222963111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 18249037921 + 93120184336 = 135089^2 + 305156^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111369222257 - 2⁴ = 111369222241 is a prime.

It is a super-2 number, since 2×111369222257² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111369212257) 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, 57632 + ... + 475457.

It is an arithmetic number, because the mean of its divisors is an integer number (14741271225).

Almost surely, 2^111369222257 is an apocalyptic number.

111369222257 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

111369222257 is a deficient number, since it is larger than the sum of its proper divisors (6560947543).

111369222257 is a wasteful number, since it uses less digits than its factorization.

111369222257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545395.

The product of its digits is 90720, while the sum is 41.

The spelling of 111369222257 in words is "one hundred eleven billion, three hundred sixty-nine million, two hundred twenty-two thousand, two hundred fifty-seven".