11101001010001 has 16 divisors (see below), whose sum is σ = 12762888647040. Its totient is φ = 9458163912960.

The previous prime is 11101001009993. The next prime is 11101001010019. The reversal of 11101001010001 is 10001010010111.

It is a happy number.

It is not a de Polignac number, because 11101001010001 - 2³ = 11101001009993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is not an unprimeable number, because it can be changed into a prime (11101001010031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1315321 + ... + 4892041.

It is an arithmetic number, because the mean of its divisors is an integer number (797680540440).

Almost surely, 2^{11101001010001} is an apocalyptic number.

It is an amenable number.

11101001010001 is a deficient number, since it is larger than the sum of its proper divisors (1661887637039).

11101001010001 is a wasteful number, since it uses less digits than its factorization.

11101001010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3579384.

The product of its (nonzero) digits is 1, while the sum is 7.

Adding to 11101001010001 its reverse (10001010010111), we get a palindrome (21102011020112).

The spelling of 11101001010001 in words is "eleven trillion, one hundred one billion, one million, ten thousand, one".