11210021121 has 16 divisors (see below), whose sum is σ = 16104628736. Its totient is φ = 6894965376.

The previous prime is 11210021117. The next prime is 11210021143. The reversal of 11210021121 is 12112001211.

It is not a de Polignac number, because 11210021121 - 2² = 11210021117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11210021097 and 11210021106.

It is not an unprimeable number, because it can be changed into a prime (11210021101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5616 + ... + 149838.

It is an arithmetic number, because the mean of its divisors is an integer number (1006539296).

Almost surely, 2^11210021121 is an apocalyptic number.

It is an amenable number.

11210021121 is a deficient number, since it is larger than the sum of its proper divisors (4894607615).

11210021121 is a wasteful number, since it uses less digits than its factorization.

11210021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146232.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11210021121 its reverse (12112001211), we get a palindrome (23322022332).

The spelling of 11210021121 in words is "eleven billion, two hundred ten million, twenty-one thousand, one hundred twenty-one".