1220200010992 has 80 divisors (see below), whose sum is σ = 2451564518400. Its totient is φ = 587641824000.

The previous prime is 1220200010941. The next prime is 1220200010999. The reversal of 1220200010992 is 2990100020221.

It is a self number, because there is not a number n which added to its sum of digits gives 1220200010992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220200010999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 559980559 + ... + 559982737.

It is an arithmetic number, because the mean of its divisors is an integer number (30644556480).

Almost surely, 2^{1220200010992} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1220200010992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1225782259200).

1220200010992 is an abundant number, since it is smaller than the sum of its proper divisors (1231364507408).

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

1220200010992 is a wasteful number, since it uses less digits than its factorization.

1220200010992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4574 (or 4568 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The spelling of 1220200010992 in words is "one trillion, two hundred twenty billion, two hundred million, ten thousand, nine hundred ninety-two".