1056221442 has 24 divisors (see below), whose sum is σ = 2289696240. Its totient is φ = 351886680.

The previous prime is 1056221417. The next prime is 1056221477. The reversal of 1056221442 is 2441226501.

1056221442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1056221442² = 2231207469081118728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21609 + ... + 50787.

It is an arithmetic number, because the mean of its divisors is an integer number (95404010).

Almost surely, 2^1056221442 is an apocalyptic number.

1056221442 is an abundant number, since it is smaller than the sum of its proper divisors (1233474798).

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

1056221442 is a wasteful number, since it uses less digits than its factorization.

1056221442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31198 (or 31195 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 1056221442 is about 32499.5606431841. The cubic root of 1056221442 is about 1018.3998497455.

Adding to 1056221442 its reverse (2441226501), we get a palindrome (3497447943).

The spelling of 1056221442 in words is "one billion, fifty-six million, two hundred twenty-one thousand, four hundred forty-two".