111213303122 has 4 divisors (see below), whose sum is σ = 166819954686. Its totient is φ = 55606651560.

The previous prime is 111213303107. The next prime is 111213303137. The reversal of 111213303122 is 221303312111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221303312111 = 7 ⋅31614758873.

It is an interprime number because it is at equal distance from previous prime (111213303107) and next prime (111213303137).

It can be written as a sum of positive squares in only one way, i.e., 91711459921 + 19501843201 = 302839^2 + 139649^2 .

It is a junction number, because it is equal to n+sod(n) for n = 111213303094 and 111213303103.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27803325779 + ... + 27803325782.

Almost surely, 2^111213303122 is an apocalyptic number.

111213303122 is a deficient number, since it is larger than the sum of its proper divisors (55606651564).

111213303122 is an equidigital number, since it uses as much as digits as its factorization.

111213303122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55606651563.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 111213303122 its reverse (221303312111), we get a palindrome (332516615233).

The spelling of 111213303122 in words is "one hundred eleven billion, two hundred thirteen million, three hundred three thousand, one hundred twenty-two".