1055311212 has 12 divisors (see below), whose sum is σ = 2462392856. Its totient is φ = 351770400.

The previous prime is 1055311183. The next prime is 1055311223. The reversal of 1055311212 is 2121135501.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1055311212² = 2227363508345817888, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43971289 + ... + 43971312.

Almost surely, 2^1055311212 is an apocalyptic number.

1055311212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1055311212 is an abundant number, since it is smaller than the sum of its proper divisors (1407081644).

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

1055311212 is a wasteful number, since it uses less digits than its factorization.

1055311212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87942608 (or 87942606 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 1055311212 is about 32485.5538970786. The cubic root of 1055311212 is about 1018.1072202932.

Adding to 1055311212 its reverse (2121135501), we get a palindrome (3176446713).

The spelling of 1055311212 in words is "one billion, fifty-five million, three hundred eleven thousand, two hundred twelve".