11100021102 has 48 divisors (see below), whose sum is σ = 24933596688. Its totient is φ = 3566252160.

The previous prime is 11100021091. The next prime is 11100021137. The reversal of 11100021102 is 20112000111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29353 + ... + 151860.

It is an arithmetic number, because the mean of its divisors is an integer number (519449931).

Almost surely, 2^11100021102 is an apocalyptic number.

11100021102 is an abundant number, since it is smaller than the sum of its proper divisors (13833575586).

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

11100021102 is a wasteful number, since it uses less digits than its factorization.

11100021102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181345 (or 181342 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 11100021102 its reverse (20112000111), we get a palindrome (31212021213).

The spelling of 11100021102 in words is "eleven billion, one hundred million, twenty-one thousand, one hundred two".