121101202221101 has 16 divisors (see below), whose sum is σ = 133803205084800. Its totient is φ = 109019274574848.

The previous prime is 121101202221059. The next prime is 121101202221113. The reversal of 121101202221101 is 101122202101121.

It is a de Polignac number, because none of the positive numbers 2^k-121101202221101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121101202221101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121101202221151) 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, 11484245 + ... + 19341413.

It is an arithmetic number, because the mean of its divisors is an integer number (8362700317800).

Almost surely, 2^{121101202221101} is an apocalyptic number.

It is an amenable number.

121101202221101 is a deficient number, since it is larger than the sum of its proper divisors (12702002863699).

121101202221101 is a wasteful number, since it uses less digits than its factorization.

121101202221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7896628.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121101202221101 its reverse (101122202101121), we get a palindrome (222223404322222).

The spelling of 121101202221101 in words is "one hundred twenty-one trillion, one hundred one billion, two hundred two million, two hundred twenty-one thousand, one hundred one".