1055111211 has 64 divisors (see below), whose sum is σ = 2051481600. Its totient is φ = 519242400.

The previous prime is 1055111201. The next prime is 1055111221. The reversal of 1055111211 is 1121115501.

1055111211 is a `hidden beast` number, since 1 + 0 + 551 + 112 + 1 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (1055111201) and next prime (1055111221).

It is not a de Polignac number, because 1055111211 - 2¹¹ = 1055109163 is a prime.

It is a super-2 number, since 2×1055111211² = 2226519335155773042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1055111201) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26146 + ... + 52856.

It is an arithmetic number, because the mean of its divisors is an integer number (32054400).

Almost surely, 2^1055111211 is an apocalyptic number.

1055111211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1055111211 is a deficient number, since it is larger than the sum of its proper divisors (996370389).

1055111211 is a wasteful number, since it uses less digits than its factorization.

1055111211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26757 (or 26751 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 18.

The square root of 1055111211 is about 32482.4754444608. The cubic root of 1055111211 is about 1018.0428995113.

Adding to 1055111211 its reverse (1121115501), we get a palindrome (2176226712).

The spelling of 1055111211 in words is "one billion, fifty-five million, one hundred eleven thousand, two hundred eleven".