11215552201 has 16 divisors (see below), whose sum is σ = 12881772288. Its totient is φ = 9565401600.

The previous prime is 11215552177. The next prime is 11215552207. The reversal of 11215552201 is 10225551211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11215552201 - 2⁹ = 11215551689 is a prime.

It is a super-2 number, since 2×11215552201² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11215552207) 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, 2901396 + ... + 2905258.

It is an arithmetic number, because the mean of its divisors is an integer number (805110768).

Almost surely, 2^11215552201 is an apocalyptic number.

It is an amenable number.

11215552201 is a deficient number, since it is larger than the sum of its proper divisors (1666220087).

11215552201 is a wasteful number, since it uses less digits than its factorization.

11215552201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5832.

The product of its (nonzero) digits is 1000, while the sum is 25.

The spelling of 11215552201 in words is "eleven billion, two hundred fifteen million, five hundred fifty-two thousand, two hundred one".