1057321222 has 16 divisors (see below), whose sum is σ = 1680178032. Its totient is φ = 497295360.

The previous prime is 1057321219. The next prime is 1057321267. The reversal of 1057321222 is 2221237501.

It is a super-2 number, since 2×1057321222² = 2235856332983146568, which contains 22 as substring.

It is a congruent number.

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, 65158 + ... + 79750.

It is an arithmetic number, because the mean of its divisors is an integer number (105011127).

Almost surely, 2^1057321222 is an apocalyptic number.

1057321222 is a deficient number, since it is larger than the sum of its proper divisors (622856810).

1057321222 is a wasteful number, since it uses less digits than its factorization.

1057321222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16743.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 1057321222 is about 32516.4761620936. The cubic root of 1057321222 is about 1018.7531933507.

Adding to 1057321222 its reverse (2221237501), we get a palindrome (3278558723).

The spelling of 1057321222 in words is "one billion, fifty-seven million, three hundred twenty-one thousand, two hundred twenty-two".