2112311013122 has 4 divisors (see below), whose sum is σ = 3168466519686. Its totient is φ = 1056155506560.

The previous prime is 2112311013103. The next prime is 2112311013139. The reversal of 2112311013122 is 2213101132112.

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., 1814621832241 + 297689180881 = 1347079^2 + 545609^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2112311013094 and 2112311013103.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528077753279 + ... + 528077753282.

Almost surely, 2^{2112311013122} is an apocalyptic number.

2112311013122 is a deficient number, since it is larger than the sum of its proper divisors (1056155506564).

2112311013122 is a wasteful number, since it uses less digits than its factorization.

2112311013122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056155506563.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 2112311013122 its reverse (2213101132112), we get a palindrome (4325412145234).

The spelling of 2112311013122 in words is "two trillion, one hundred twelve billion, three hundred eleven million, thirteen thousand, one hundred twenty-two".