11120021221001 has 16 divisors (see below), whose sum is σ = 14679447419520. Its totient is φ = 8155248564480.

The previous prime is 11120021220961. The next prime is 11120021221019. The reversal of 11120021221001 is 10012212002111.

It is a cyclic number.

It is not a de Polignac number, because 11120021221001 - 2¹⁸ = 11120020958857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11120021221031) 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, 4247523986 + ... + 4247526603.

It is an arithmetic number, because the mean of its divisors is an integer number (917465463720).

Almost surely, 2^{11120021221001} is an apocalyptic number.

11120021221001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11120021221001 is a deficient number, since it is larger than the sum of its proper divisors (3559426198519).

11120021221001 is a wasteful number, since it uses less digits than its factorization.

11120021221001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8495050624.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11120021221001 its reverse (10012212002111), we get a palindrome (21132233223112).

The spelling of 11120021221001 in words is "eleven trillion, one hundred twenty billion, twenty-one million, two hundred twenty-one thousand, one".