11101221121001 has 8 divisors (see below), whose sum is σ = 12111794500608. Its totient is φ = 10090876318000.

The previous prime is 11101221120967. The next prime is 11101221121007. The reversal of 11101221121001 is 10012112210111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11101221121001 - 2⁴² = 6703174609897 is a prime.

It is a super-2 number, since 2×11101221121001² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11101221121007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57042590 + ... + 57236871.

It is an arithmetic number, because the mean of its divisors is an integer number (1513974312576).

Almost surely, 2^{11101221121001} is an apocalyptic number.

11101221121001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11101221121001 is a deficient number, since it is larger than the sum of its proper divisors (1010573379607).

11101221121001 is a wasteful number, since it uses less digits than its factorization.

11101221121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114288303.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 11101221121001 its reverse (10012112210111), we get a palindrome (21113333331112).

The spelling of 11101221121001 in words is "eleven trillion, one hundred one billion, two hundred twenty-one million, one hundred twenty-one thousand, one".