1210120102040 has 64 divisors (see below), whose sum is σ = 2910448013760. Its totient is φ = 451709716480.

The previous prime is 1210120102039. The next prime is 1210120102097. The reversal of 1210120102040 is 402010210121.

It is a happy number.

It is a super-2 number, since 2×1210120102040² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16003109 + ... + 16078548.

It is an arithmetic number, because the mean of its divisors is an integer number (45475750215).

Almost surely, 2^{1210120102040} is an apocalyptic number.

1210120102040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210120102040 is an abundant number, since it is smaller than the sum of its proper divisors (1700327911720).

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

1210120102040 is a wasteful number, since it uses less digits than its factorization.

1210120102040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32081732 (or 32081728 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1210120102040 its reverse (402010210121), we get a palindrome (1612130312161).

The spelling of 1210120102040 in words is "one trillion, two hundred ten billion, one hundred twenty million, one hundred two thousand, forty".