11111002121201 has 4 divisors (see below), whose sum is σ = 11190937388400. Its totient is φ = 11031066854004.

The previous prime is 11111002121189. The next prime is 11111002121269. The reversal of 11111002121201 is 10212120011111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11111002121201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11111002021201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39967633391 + ... + 39967633668.

It is an arithmetic number, because the mean of its divisors is an integer number (2797734347100).

Almost surely, 2^{11111002121201} is an apocalyptic number.

It is an amenable number.

11111002121201 is a deficient number, since it is larger than the sum of its proper divisors (79935267199).

11111002121201 is an equidigital number, since it uses as much as digits as its factorization.

11111002121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79935267198.

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

Adding to 11111002121201 its reverse (10212120011111), we get a palindrome (21323122132312).

The spelling of 11111002121201 in words is "eleven trillion, one hundred eleven billion, two million, one hundred twenty-one thousand, two hundred one".