1056001212 has 72 divisors (see below), whose sum is σ = 3163678336. Its totient is φ = 301712688.

The previous prime is 1056001187. The next prime is 1056001213. The reversal of 1056001212 is 2121006501.

It is a super-2 number, since 2×1056001212² = 2230277119490937888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056001213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70798 + ... + 84405.

Almost surely, 2^1056001212 is an apocalyptic number.

1056001212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1056001212 is an abundant number, since it is smaller than the sum of its proper divisors (2107677124).

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

1056001212 is a wasteful number, since it uses less digits than its factorization.

1056001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155229 (or 155215 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1056001212 is about 32496.1722668994. The cubic root of 1056001212 is about 1018.3290635196.

Adding to 1056001212 its reverse (2121006501), we get a palindrome (3177007713).

The spelling of 1056001212 in words is "one billion, fifty-six million, one thousand, two hundred twelve".