111222640257 has 8 divisors (see below), whose sum is σ = 148305044160. Its totient is φ = 74144331600.

The previous prime is 111222640223. The next prime is 111222640259. The reversal of 111222640257 is 752046222111.

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

It is not a de Polignac number, because 111222640257 - 2⁷ = 111222640129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111222640259) 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, 959869 + ... + 1069482.

It is an arithmetic number, because the mean of its divisors is an integer number (18538130520).

Almost surely, 2^111222640257 is an apocalyptic number.

It is an amenable number.

111222640257 is a deficient number, since it is larger than the sum of its proper divisors (37082403903).

111222640257 is a wasteful number, since it uses less digits than its factorization.

111222640257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2047623.

The product of its (nonzero) digits is 13440, while the sum is 33.

Adding to 111222640257 its reverse (752046222111), we get a palindrome (863268862368).

The spelling of 111222640257 in words is "one hundred eleven billion, two hundred twenty-two million, six hundred forty thousand, two hundred fifty-seven".