11252243211 has 32 divisors (see below), whose sum is σ = 16568064000. Its totient is φ = 6735886080.

The previous prime is 11252243207. The next prime is 11252243227. The reversal of 11252243211 is 11234225211.

It is a happy number.

It is not a de Polignac number, because 11252243211 - 2² = 11252243207 is a prime.

It is a super-2 number, since 2×11252243211² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11252243111) 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, 4689190 + ... + 4691588.

It is an arithmetic number, because the mean of its divisors is an integer number (517752000).

Almost surely, 2^11252243211 is an apocalyptic number.

11252243211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11252243211 is a deficient number, since it is larger than the sum of its proper divisors (5315820789).

11252243211 is a wasteful number, since it uses less digits than its factorization.

11252243211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4099.

The product of its digits is 960, while the sum is 24.

Adding to 11252243211 its reverse (11234225211), we get a palindrome (22486468422).

The spelling of 11252243211 in words is "eleven billion, two hundred fifty-two million, two hundred forty-three thousand, two hundred eleven".