2215391109120 has 896 divisors, whose sum is σ = 9115385863680. Its totient is φ = 506231783424.

The previous prime is 2215391109119. The next prime is 2215391109227. The reversal of 2215391109120 is 219011935122.

2215391109120 is a `hidden beast` number, since 2 + 2 + 1 + 539 + 1 + 10 + 91 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (896).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 627054874 + ... + 627058406.

Almost surely, 2^{2215391109120} is an apocalyptic number.

2215391109120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2215391109120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4557692931840).

2215391109120 is an abundant number, since it is smaller than the sum of its proper divisors (6899994754560).

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

2215391109120 is an frugal number, since it uses more digits than its factorization.

2215391109120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3592 (or 3550 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 36.

The spelling of 2215391109120 in words is "two trillion, two hundred fifteen billion, three hundred ninety-one million, one hundred nine thousand, one hundred twenty".