111201121102001 has 32 divisors (see below), whose sum is σ = 129856536714240. Its totient is φ = 93258572654016.

The previous prime is 111201121101907. The next prime is 111201121102037. The reversal of 111201121102001 is 100201121102111.

It is not a de Polignac number, because 111201121102001 - 2²⁶ = 111201053993137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111201121102091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70833770 + ... + 72386636.

It is an arithmetic number, because the mean of its divisors is an integer number (4058016772320).

Almost surely, 2^{111201121102001} is an apocalyptic number.

It is an amenable number.

111201121102001 is a deficient number, since it is larger than the sum of its proper divisors (18655415612239).

111201121102001 is a wasteful number, since it uses less digits than its factorization.

111201121102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1553973.

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

Adding to 111201121102001 its reverse (100201121102111), we get a palindrome (211402242204112).

The spelling of 111201121102001 in words is "one hundred eleven trillion, two hundred one billion, one hundred twenty-one million, one hundred two thousand, one".