1210110012 has 36 divisors (see below), whose sum is σ = 3141565336. Its totient is φ = 392467680.

The previous prime is 1210110007. The next prime is 1210110059. The reversal of 1210110012 is 2100110121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1210110012² = 2928732482285280288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1210109976 and 1210110003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 452914 + ... + 455577.

Almost surely, 2^1210110012 is an apocalyptic number.

1210110012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1210110012 is an abundant number, since it is smaller than the sum of its proper divisors (1931455324).

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

1210110012 is a wasteful number, since it uses less digits than its factorization.

1210110012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908538 (or 908533 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 1210110012 is about 34786.6355372289. The cubic root of 1210110012 is about 1065.6345302875.

Adding to 1210110012 its reverse (2100110121), we get a palindrome (3310220133).

The spelling of 1210110012 in words is "one billion, two hundred ten million, one hundred ten thousand, twelve".