11215800490 has 16 divisors (see below), whose sum is σ = 21375996552. Its totient is φ = 4222418944.

The previous prime is 11215800487. The next prime is 11215800493. The reversal of 11215800490 is 9400851211.

It is a happy number.

11215800490 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11215800487) and next prime (11215800493).

It can be written as a sum of positive squares in 4 ways, for example, as 6670478929 + 4545321561 = 81673^2 + 67419^2 .

It is not an unprimeable number, because it can be changed into a prime (11215800493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32987479 + ... + 32987818.

Almost surely, 2^11215800490 is an apocalyptic number.

11215800490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11215800490 is a deficient number, since it is larger than the sum of its proper divisors (10160196062).

11215800490 is a wasteful number, since it uses less digits than its factorization.

11215800490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65975321.

The product of its (nonzero) digits is 2880, while the sum is 31.

The spelling of 11215800490 in words is "eleven billion, two hundred fifteen million, eight hundred thousand, four hundred ninety".