1222121020112 has 20 divisors (see below), whose sum is σ = 2418239466816. Its totient is φ = 598059222240.

The previous prime is 1222121020061. The next prime is 1222121020187. The reversal of 1222121020112 is 2110201212221.

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, 812579714 + ... + 812581217.

Almost surely, 2^{1222121020112} is an apocalyptic number.

It is an amenable number.

1222121020112 is a deficient number, since it is larger than the sum of its proper divisors (1196118446704).

1222121020112 is a wasteful number, since it uses less digits than its factorization.

1222121020112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625160986 (or 1625160980 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1222121020112 its reverse (2110201212221), we get a palindrome (3332322232333).

The spelling of 1222121020112 in words is "one trillion, two hundred twenty-two billion, one hundred twenty-one million, twenty thousand, one hundred twelve".