1210510400120 has 64 divisors (see below), whose sum is σ = 3176266392000. Its totient is φ = 415032132480.

The previous prime is 1210510400111. The next prime is 1210510400123. The reversal of 1210510400120 is 210040150121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210510400123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44101091 + ... + 44128530.

It is an arithmetic number, because the mean of its divisors is an integer number (49629162375).

Almost surely, 2^{1210510400120} is an apocalyptic number.

1210510400120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210510400120 is an abundant number, since it is smaller than the sum of its proper divisors (1965755991880).

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

1210510400120 is an equidigital number, since it uses as much as digits as its factorization.

1210510400120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88229653 (or 88229635 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 1210510400120 its reverse (210040150121), we get a palindrome (1420550550241).

The spelling of 1210510400120 in words is "one trillion, two hundred ten billion, five hundred ten million, four hundred thousand, one hundred twenty".