11101022001 has 8 divisors (see below), whose sum is σ = 16445958560. Its totient is φ = 7400681316.

The previous prime is 11101021957. The next prime is 11101022011. The reversal of 11101022001 is 10022010111.

It is a happy number.

It is not a de Polignac number, because 11101022001 - 2¹⁰ = 11101020977 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11101022011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205574455 + ... + 205574508.

It is an arithmetic number, because the mean of its divisors is an integer number (2055744820).

Almost surely, 2^11101022001 is an apocalyptic number.

It is an amenable number.

11101022001 is a deficient number, since it is larger than the sum of its proper divisors (5344936559).

11101022001 is an equidigital number, since it uses as much as digits as its factorization.

11101022001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411148972 (or 411148966 counting only the distinct ones).

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

Adding to 11101022001 its reverse (10022010111), we get a palindrome (21123032112).

The spelling of 11101022001 in words is "eleven billion, one hundred one million, twenty-two thousand, one".