2122200111112 has 8 divisors (see below), whose sum is σ = 3979125208350. Its totient is φ = 1061100055552.

The previous prime is 2122200111089. The next prime is 2122200111113. The reversal of 2122200111112 is 2111110022212.

It can be written as a sum of positive squares in only one way, i.e., 1294256623716 + 827943487396 = 1137654^2 + 909914^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (2122200111113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132637506937 + ... + 132637506952.

Almost surely, 2^{2122200111112} is an apocalyptic number.

It is an amenable number.

2122200111112 is a deficient number, since it is larger than the sum of its proper divisors (1856925097238).

2122200111112 is a wasteful number, since it uses less digits than its factorization.

2122200111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265275013895 (or 265275013891 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2122200111112 its reverse (2111110022212), we get a palindrome (4233310133324).

The spelling of 2122200111112 in words is "two trillion, one hundred twenty-two billion, two hundred million, one hundred eleven thousand, one hundred twelve".