11002021101 has 12 divisors (see below), whose sum is σ = 16480394112. Its totient is φ = 7334680572.

The previous prime is 11002021097. The next prime is 11002021111. The reversal of 11002021101 is 10112020011.

It is a happy number.

It is not a de Polignac number, because 11002021101 - 2² = 11002021097 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11002021111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22637661 + ... + 22638146.

It is an arithmetic number, because the mean of its divisors is an integer number (1373366176).

Almost surely, 2^11002021101 is an apocalyptic number.

It is an amenable number.

11002021101 is a deficient number, since it is larger than the sum of its proper divisors (5478373011).

11002021101 is an frugal number, since it uses more digits than its factorization.

11002021101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45275822 (or 45275810 counting only the distinct ones).

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

Adding to 11002021101 its reverse (10112020011), we get a palindrome (21114041112).

The spelling of 11002021101 in words is "eleven billion, two million, twenty-one thousand, one hundred one".