121101022111001 has 16 divisors (see below), whose sum is σ = 123984098841600. Its totient is φ = 118254298344000.

The previous prime is 121101022110983. The next prime is 121101022111007. The reversal of 121101022111001 is 100111220101121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121101022111001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121101022111007) 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, 1061246 + ... + 15598983.

It is an arithmetic number, because the mean of its divisors is an integer number (7749006177600).

Almost surely, 2^{121101022111001} is an apocalyptic number.

It is an amenable number.

121101022111001 is a deficient number, since it is larger than the sum of its proper divisors (2883076730599).

121101022111001 is a wasteful number, since it uses less digits than its factorization.

121101022111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16661320.

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

Adding to 121101022111001 its reverse (100111220101121), we get a palindrome (221212242212122).

The spelling of 121101022111001 in words is "one hundred twenty-one trillion, one hundred one billion, twenty-two million, one hundred eleven thousand, one".