1056217211 has 4 divisors (see below), whose sum is σ = 1207105392. Its totient is φ = 905329032.

The previous prime is 1056217181. The next prime is 1056217243. The reversal of 1056217211 is 1127126501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1056217211 - 2⁶ = 1056217147 is a prime.

It is a super-2 number, since 2×1056217211² = 2231189593625237042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1056217291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75444080 + ... + 75444093.

It is an arithmetic number, because the mean of its divisors is an integer number (301776348).

Almost surely, 2^1056217211 is an apocalyptic number.

1056217211 is a deficient number, since it is larger than the sum of its proper divisors (150888181).

1056217211 is an equidigital number, since it uses as much as digits as its factorization.

1056217211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150888180.

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 1056217211 is about 32499.4955499312. The cubic root of 1056217211 is about 1018.3984899122.

The spelling of 1056217211 in words is "one billion, fifty-six million, two hundred seventeen thousand, two hundred eleven".