11121201201 has 32 divisors (see below), whose sum is σ = 17768033280. Its totient is φ = 6107745600.

The previous prime is 11121201193. The next prime is 11121201263. The reversal of 11121201201 is 10210212111.

It is not a de Polignac number, because 11121201201 - 2³ = 11121201193 is a prime.

It is a super-2 number, since 2×11121201201² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11121201601) 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, 371170 + ... + 400011.

It is an arithmetic number, because the mean of its divisors is an integer number (555251040).

Almost surely, 2^11121201201 is an apocalyptic number.

11121201201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11121201201 is a deficient number, since it is larger than the sum of its proper divisors (6646832079).

11121201201 is a wasteful number, since it uses less digits than its factorization.

11121201201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771237.

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

Adding to 11121201201 its reverse (10210212111), we get a palindrome (21331413312).

The spelling of 11121201201 in words is "eleven billion, one hundred twenty-one million, two hundred one thousand, two hundred one".