1210211112 has 64 divisors (see below), whose sum is σ = 3342412800. Its totient is φ = 362082240.

The previous prime is 1210211039. The next prime is 1210211173. The reversal of 1210211112 is 2111120121.

It is a super-2 number, since 2×1210211112² = 2929221871216553088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8158 + ... + 49869.

It is an arithmetic number, because the mean of its divisors is an integer number (52225200).

Almost surely, 2^1210211112 is an apocalyptic number.

1210211112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1210211112 is an abundant number, since it is smaller than the sum of its proper divisors (2132201688).

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

1210211112 is a wasteful number, since it uses less digits than its factorization.

1210211112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58126 (or 58122 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

The square root of 1210211112 is about 34788.0886511461. The cubic root of 1210211112 is about 1065.6642060056.

Adding to 1210211112 its reverse (2111120121), we get a palindrome (3321331233).

Subtracting 1210211112 from its reverse (2111120121), we obtain a palindrome (900909009).

The spelling of 1210211112 in words is "one billion, two hundred ten million, two hundred eleven thousand, one hundred twelve".