1056542222 has 4 divisors (see below), whose sum is σ = 1584813336. Its totient is φ = 528271110.

The previous prime is 1056542189. The next prime is 1056542233. The reversal of 1056542222 is 2222456501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2222456501 = 13037 ⋅170473.

It is a super-2 number, since 2×1056542222² = 2232562933737394568, 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 as a sum of consecutive naturals, namely, 264135554 + ... + 264135557.

It is an arithmetic number, because the mean of its divisors is an integer number (396203334).

Almost surely, 2^1056542222 is an apocalyptic number.

1056542222 is a deficient number, since it is larger than the sum of its proper divisors (528271114).

1056542222 is an equidigital number, since it uses as much as digits as its factorization.

1056542222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528271113.

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

The square root of 1056542222 is about 32504.4954121734. The cubic root of 1056542222 is about 1018.5029371048.

Adding to 1056542222 its reverse (2222456501), we get a palindrome (3278998723).

The spelling of 1056542222 in words is "one billion, fifty-six million, five hundred forty-two thousand, two hundred twenty-two".