11021102001 has 96 divisors (see below), whose sum is σ = 20802902400. Its totient is φ = 5714271360.

The previous prime is 11021101991. The next prime is 11021102003. The reversal of 11021102001 is 10020112011.

It is a happy number.

It is not a de Polignac number, because 11021102001 - 2⁵ = 11021101969 is a prime.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11021102003) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1009311 + ... + 1020171.

It is an arithmetic number, because the mean of its divisors is an integer number (216696900).

Almost surely, 2^11021102001 is an apocalyptic number.

It is an amenable number.

11021102001 is a deficient number, since it is larger than the sum of its proper divisors (9781800399).

11021102001 is a wasteful number, since it uses less digits than its factorization.

11021102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10956 (or 10943 counting only the distinct ones).

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

Adding to 11021102001 its reverse (10020112011), we get a palindrome (21041214012).

The spelling of 11021102001 in words is "eleven billion, twenty-one million, one hundred two thousand, one".