2193221256 has 32 divisors (see below), whose sum is σ = 5485892640. Its totient is φ = 730695168.

The previous prime is 2193221231. The next prime is 2193221273. The reversal of 2193221256 is 6521223912.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25755 + ... + 71061.

It is an arithmetic number, because the mean of its divisors is an integer number (171434145).

Almost surely, 2^2193221256 is an apocalyptic number.

It is an amenable number.

2193221256 is an abundant number, since it is smaller than the sum of its proper divisors (3292671384).

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

2193221256 is a wasteful number, since it uses less digits than its factorization.

2193221256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47333 (or 47329 counting only the distinct ones).

The product of its digits is 12960, while the sum is 33.

The square root of 2193221256 is about 46831.8401944660. The cubic root of 2193221256 is about 1299.2542578901.

The spelling of 2193221256 in words is "two billion, one hundred ninety-three million, two hundred twenty-one thousand, two hundred fifty-six".