1222012112 has 20 divisors (see below), whose sum is σ = 2376023520. Its totient is φ = 608844768.

The previous prime is 1222012091. The next prime is 1222012123. The reversal of 1222012112 is 2112102221.

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, 130412 + ... + 139467.

It is an arithmetic number, because the mean of its divisors is an integer number (118801176).

Almost surely, 2^1222012112 is an apocalyptic number.

It is an amenable number.

1222012112 is a deficient number, since it is larger than the sum of its proper divisors (1154011408).

1222012112 is a wasteful number, since it uses less digits than its factorization.

1222012112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270170 (or 270164 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1222012112 is about 34957.2898263009. The cubic root of 1222012112 is about 1069.1168396011.

Adding to 1222012112 its reverse (2112102221), we get a palindrome (3334114333).

The spelling of 1222012112 in words is "one billion, two hundred twenty-two million, twelve thousand, one hundred twelve".