11552210121 has 16 divisors (see below), whose sum is σ = 16290487040. Its totient is φ = 7261546320.

The previous prime is 11552210099. The next prime is 11552210177. The reversal of 11552210121 is 12101225511.

It is a de Polignac number, because none of the positive numbers 2^k-11552210121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11552217121) 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, 468235 + ... + 492288.

It is an arithmetic number, because the mean of its divisors is an integer number (1018155440).

Almost surely, 2^11552210121 is an apocalyptic number.

It is an amenable number.

11552210121 is a deficient number, since it is larger than the sum of its proper divisors (4738276919).

11552210121 is a wasteful number, since it uses less digits than its factorization.

11552210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960756.

The product of its (nonzero) digits is 200, while the sum is 21.

Adding to 11552210121 its reverse (12101225511), we get a palindrome (23653435632).

The spelling of 11552210121 in words is "eleven billion, five hundred fifty-two million, two hundred ten thousand, one hundred twenty-one".