111213100233122 has 4 divisors (see below), whose sum is σ = 166819650349686. Its totient is φ = 55606550116560.

The previous prime is 111213100233107. The next prime is 111213100233143. The reversal of 111213100233122 is 221332001312111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 110287404171961 + 925696061161 = 10501781^2 + 962131^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27803275058279 + ... + 27803275058282.

Almost surely, 2^{111213100233122} is an apocalyptic number.

111213100233122 is a deficient number, since it is larger than the sum of its proper divisors (55606550116564).

111213100233122 is an equidigital number, since it uses as much as digits as its factorization.

111213100233122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55606550116563.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 111213100233122 its reverse (221332001312111), we get a palindrome (332545101545233).

The spelling of 111213100233122 in words is "one hundred eleven trillion, two hundred thirteen billion, one hundred million, two hundred thirty-three thousand, one hundred twenty-two".