11022521121 has 8 divisors (see below), whose sum is σ = 16329660960. Its totient is φ = 7348347396.

The previous prime is 11022521119. The next prime is 11022521161. The reversal of 11022521121 is 12112522011.

11022521121 is a `hidden beast` number, since 1 + 1 + 0 + 22 + 521 + 121 = 666.

It is not a de Polignac number, because 11022521121 - 2¹ = 11022521119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11022521094 and 11022521103.

It is not an unprimeable number, because it can be changed into a prime (11022521161) 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, 204120735 + ... + 204120788.

It is an arithmetic number, because the mean of its divisors is an integer number (2041207620).

Almost surely, 2^11022521121 is an apocalyptic number.

It is an amenable number.

11022521121 is a deficient number, since it is larger than the sum of its proper divisors (5307139839).

11022521121 is an equidigital number, since it uses as much as digits as its factorization.

11022521121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408241532 (or 408241526 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The spelling of 11022521121 in words is "eleven billion, twenty-two million, five hundred twenty-one thousand, one hundred twenty-one".