1210220120120 has 64 divisors (see below), whose sum is σ = 3072972751200. Its totient is φ = 424904865280.

The previous prime is 1210220120111. The next prime is 1210220120147. The reversal of 1210220120120 is 210210220121.

It is a junction number, because it is equal to n+sod(n) for n = 1210220120095 and 1210220120104.

It is a congruent number.

It is an unprimeable number.

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, 47409659 + ... + 47435178.

Almost surely, 2^{1210220120120} is an apocalyptic number.

1210220120120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210220120120 is an abundant number, since it is smaller than the sum of its proper divisors (1862752631080).

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

1210220120120 is a wasteful number, since it uses less digits than its factorization.

1210220120120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94844888 (or 94844884 counting only the distinct ones).

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

Adding to 1210220120120 its reverse (210210220121), we get a palindrome (1420430340241).

The spelling of 1210220120120 in words is "one trillion, two hundred ten billion, two hundred twenty million, one hundred twenty thousand, one hundred twenty".