2215399240990 has 64 divisors (see below), whose sum is σ = 4486632062976. Its totient is φ = 781477057152.

The previous prime is 2215399240939. The next prime is 2215399241039. The reversal of 2215399240990 is 990429935122.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2010627 + ... + 2910913.

It is an arithmetic number, because the mean of its divisors is an integer number (70103625984).

Almost surely, 2^{2215399240990} is an apocalyptic number.

2215399240990 is an abundant number, since it is smaller than the sum of its proper divisors (2271232821986).

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

2215399240990 is a wasteful number, since it uses less digits than its factorization.

2215399240990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901153.

The product of its (nonzero) digits is 3149280, while the sum is 55.

The spelling of 2215399240990 in words is "two trillion, two hundred fifteen billion, three hundred ninety-nine million, two hundred forty thousand, nine hundred ninety".