11224011522521 has 32 divisors (see below), whose sum is σ = 13607786016000. Its totient is φ = 9037482854400.

The previous prime is 11224011522491. The next prime is 11224011522551. The reversal of 11224011522521 is 12522511042211.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11224011522491) and next prime (11224011522551).

It is not a de Polignac number, because 11224011522521 - 2⁶ = 11224011522457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11224011522551) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 214791605 + ... + 214843853.

It is an arithmetic number, because the mean of its divisors is an integer number (425243313000).

Almost surely, 2^{11224011522521} is an apocalyptic number.

It is an amenable number.

11224011522521 is a deficient number, since it is larger than the sum of its proper divisors (2383774493479).

11224011522521 is a wasteful number, since it uses less digits than its factorization.

11224011522521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55665.

The product of its (nonzero) digits is 3200, while the sum is 29.

Adding to 11224011522521 its reverse (12522511042211), we get a palindrome (23746522564732).

The spelling of 11224011522521 in words is "eleven trillion, two hundred twenty-four billion, eleven million, five hundred twenty-two thousand, five hundred twenty-one".