111312111212222 has 8 divisors (see below), whose sum is σ = 167117645932536. Its totient is φ = 55606229234712.

The previous prime is 111312111212219. The next prime is 111312111212249. The reversal of 111312111212222 is 222212111213111.

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

It is a super-2 number, since 2×111312111212222² (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 3 ways as a sum of consecutive naturals, for example, 24913182908 + ... + 24913187375.

It is an arithmetic number, because the mean of its divisors is an integer number (20889705741567).

Almost surely, 2^{111312111212222} is an apocalyptic number.

111312111212222 is a deficient number, since it is larger than the sum of its proper divisors (55805534720314).

111312111212222 is a wasteful number, since it uses less digits than its factorization.

111312111212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49826371402.

The product of its digits is 192, while the sum is 23.

Adding to 111312111212222 its reverse (222212111213111), we get a palindrome (333524222425333).

The spelling of 111312111212222 in words is "one hundred eleven trillion, three hundred twelve billion, one hundred eleven million, two hundred twelve thousand, two hundred twenty-two".