11521224514 has 4 divisors (see below), whose sum is σ = 17281836774. Its totient is φ = 5760612256.

The previous prime is 11521224499. The next prime is 11521224521. The reversal of 11521224514 is 41542212511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41542212511 = 120677 ⋅344243.

It can be written as a sum of positive squares in only one way, i.e., 7511168889 + 4010055625 = 86667^2 + 63325^2 .

It is a super-2 number, since 2×11521224514² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2880306127 + ... + 2880306130.

Almost surely, 2^11521224514 is an apocalyptic number.

11521224514 is a deficient number, since it is larger than the sum of its proper divisors (5760612260).

11521224514 is an equidigital number, since it uses as much as digits as its factorization.

11521224514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5760612259.

The product of its digits is 3200, while the sum is 28.

The spelling of 11521224514 in words is "eleven billion, five hundred twenty-one million, two hundred twenty-four thousand, five hundred fourteen".