1220323112190 has 240 divisors, whose sum is σ = 3986160823008. Its totient is φ = 257474173824.

The previous prime is 1220323112189. The next prime is 1220323112213. The reversal of 1220323112190 is 912113230221.

1220323112190 is a `hidden beast` number, since 1 + 220 + 3 + 231 + 121 + 90 = 666.

It is a super-3 number, since 3×1220323112190³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 2591967 + ... + 3026373.

Almost surely, 2^{1220323112190} is an apocalyptic number.

1220323112190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1220323112190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1993080411504).

1220323112190 is an abundant number, since it is smaller than the sum of its proper divisors (2765837710818).

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

1220323112190 is a wasteful number, since it uses less digits than its factorization.

1220323112190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434461 (or 434437 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The spelling of 1220323112190 in words is "one trillion, two hundred twenty billion, three hundred twenty-three million, one hundred twelve thousand, one hundred ninety".