1220123020120 has 32 divisors (see below), whose sum is σ = 2906763667200. Its totient is φ = 459340430848.

The previous prime is 1220123020093. The next prime is 1220123020157. The reversal of 1220123020120 is 210203210221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1220123020094 and 1220123020103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 897148600 + ... + 897149959.

It is an arithmetic number, because the mean of its divisors is an integer number (90836364600).

Almost surely, 2^{1220123020120} is an apocalyptic number.

1220123020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220123020120 is an abundant number, since it is smaller than the sum of its proper divisors (1686640647080).

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

1220123020120 is a wasteful number, since it uses less digits than its factorization.

1220123020120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1794298587 (or 1794298583 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1220123020120 its reverse (210203210221), we get a palindrome (1430326230341).

The spelling of 1220123020120 in words is "one trillion, two hundred twenty billion, one hundred twenty-three million, twenty thousand, one hundred twenty".