1220453112 has 16 divisors (see below), whose sum is σ = 3051132840. Its totient is φ = 406817696.

The previous prime is 1220453099. The next prime is 1220453131. The reversal of 1220453112 is 2113540221.

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, 25426083 + ... + 25426130.

Almost surely, 2^1220453112 is an apocalyptic number.

1220453112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1220453112 is an abundant number, since it is smaller than the sum of its proper divisors (1830679728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220453112 is a wasteful number, since it uses less digits than its factorization.

1220453112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50852222 (or 50852218 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1220453112 is about 34934.9840704129. The cubic root of 1220453112 is about 1068.6619989236.

Adding to 1220453112 its reverse (2113540221), we get a palindrome (3333993333).

The spelling of 1220453112 in words is "one billion, two hundred twenty million, four hundred fifty-three thousand, one hundred twelve".