11266721100 has 108 divisors (see below), whose sum is σ = 37392309864. Its totient is φ = 2827722240.

The previous prime is 11266721093. The next prime is 11266721101. The reversal of 11266721100 is 112766211.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11266721101) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 352894 + ... + 383493.

Almost surely, 2^11266721100 is an apocalyptic number.

11266721100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11266721100 is an abundant number, since it is smaller than the sum of its proper divisors (26125588764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11266721100 is a wasteful number, since it uses less digits than its factorization.

11266721100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736424 (or 736414 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The spelling of 11266721100 in words is "eleven billion, two hundred sixty-six million, seven hundred twenty-one thousand, one hundred".