11100221012 has 12 divisors (see below), whose sum is σ = 19440583680. Its totient is φ = 5545768536.

The previous prime is 11100221003. The next prime is 11100221017. The reversal of 11100221012 is 21012200111.

It is a junction number, because it is equal to n+sod(n) for n = 11100220984 and 11100221002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11100221017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1079738 + ... + 1089969.

It is an arithmetic number, because the mean of its divisors is an integer number (1620048640).

Almost surely, 2^11100221012 is an apocalyptic number.

It is an amenable number.

11100221012 is a deficient number, since it is larger than the sum of its proper divisors (8340362668).

11100221012 is a wasteful number, since it uses less digits than its factorization.

11100221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2170990 (or 2170988 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11100221012 its reverse (21012200111), we get a palindrome (32112421123).

The spelling of 11100221012 in words is "eleven billion, one hundred million, two hundred twenty-one thousand, twelve".