1222554444 has 24 divisors (see below), whose sum is σ = 2929726128. Its totient is φ = 396504000.

The previous prime is 1222554419. The next prime is 1222554469. The reversal of 1222554444 is 4444552221.

It is an interprime number because it is at equal distance from previous prime (1222554419) and next prime (1222554469).

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, 1376307 + ... + 1377194.

It is an arithmetic number, because the mean of its divisors is an integer number (122071922).

Almost surely, 2^1222554444 is an apocalyptic number.

It is an amenable number.

1222554444 is an abundant number, since it is smaller than the sum of its proper divisors (1707171684).

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

1222554444 is a wasteful number, since it uses less digits than its factorization.

1222554444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2753545 (or 2753543 counting only the distinct ones).

The product of its digits is 51200, while the sum is 33.

The square root of 1222554444 is about 34965.0460317157. The cubic root of 1222554444 is about 1069.2749751096.

The spelling of 1222554444 in words is "one billion, two hundred twenty-two million, five hundred fifty-four thousand, four hundred forty-four".