1210001010120 has 96 divisors (see below), whose sum is σ = 4494289475520. Its totient is φ = 276571658880.

The previous prime is 1210001010073. The next prime is 1210001010131. The reversal of 1210001010120 is 210101000121.

It is a happy number.

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

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 240077046 + ... + 240082085.

It is an arithmetic number, because the mean of its divisors is an integer number (46815515370).

Almost surely, 2^{1210001010120} is an apocalyptic number.

1210001010120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210001010120 is an abundant number, since it is smaller than the sum of its proper divisors (3284288465400).

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

1210001010120 is a wasteful number, since it uses less digits than its factorization.

1210001010120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480159155 (or 480159148 counting only the distinct ones).

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

Adding to 1210001010120 its reverse (210101000121), we get a palindrome (1420102010241).

Subtracting from 1210001010120 its reverse (210101000121), we obtain a palindrome (999900009999).

The spelling of 1210001010120 in words is "one trillion, two hundred ten billion, one million, ten thousand, one hundred twenty".