11211247490 has 16 divisors (see below), whose sum is σ = 20186834040. Its totient is φ = 4483034880.

The previous prime is 11211247477. The next prime is 11211247517. The reversal of 11211247490 is 9474211211.

It can be written as a sum of positive squares in 4 ways, for example, as 8048422369 + 3162825121 = 89713^2 + 56239^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150581 + ... + 212360.

Almost surely, 2^11211247490 is an apocalyptic number.

11211247490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11211247490 is a deficient number, since it is larger than the sum of its proper divisors (8975586550).

11211247490 is a wasteful number, since it uses less digits than its factorization.

11211247490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366037.

The product of its (nonzero) digits is 4032, while the sum is 32.

The spelling of 11211247490 in words is "eleven billion, two hundred eleven million, two hundred forty-seven thousand, four hundred ninety".