1222542056 has 16 divisors (see below), whose sum is σ = 2304933540. Its totient is φ = 607893120.

The previous prime is 1222542031. The next prime is 1222542091. The reversal of 1222542056 is 6502452221.

It can be written as a sum of positive squares in 2 ways, for example, as 971319556 + 251222500 = 31166^2 + 15850^2 .

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, 420701 + ... + 423596.

Almost surely, 2^1222542056 is an apocalyptic number.

It is an amenable number.

1222542056 is a deficient number, since it is larger than the sum of its proper divisors (1082391484).

1222542056 is a wasteful number, since it uses less digits than its factorization.

1222542056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844484 (or 844480 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 1222542056 is about 34964.8688829230. The cubic root of 1222542056 is about 1069.2713634850.

Adding to 1222542056 its reverse (6502452221), we get a palindrome (7724994277).

The spelling of 1222542056 in words is "one billion, two hundred twenty-two million, five hundred forty-two thousand, fifty-six".