1222553976 has 64 divisors (see below), whose sum is σ = 3515335680. Its totient is φ = 347068800.

The previous prime is 1222553951. The next prime is 1222553977. The reversal of 1222553976 is 6793552221.

1222553976 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222553977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3201 + ... + 49551.

It is an arithmetic number, because the mean of its divisors is an integer number (54927120).

Almost surely, 2^1222553976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222553976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1757667840).

1222553976 is an abundant number, since it is smaller than the sum of its proper divisors (2292781704).

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

1222553976 is a wasteful number, since it uses less digits than its factorization.

1222553976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46524 (or 46520 counting only the distinct ones).

The product of its digits is 226800, while the sum is 42.

The square root of 1222553976 is about 34965.0393393172. The cubic root of 1222553976 is about 1069.2748386683.

The spelling of 1222553976 in words is "one billion, two hundred twenty-two million, five hundred fifty-three thousand, nine hundred seventy-six".