121002221011101 has 16 divisors (see below), whose sum is σ = 166540983298560. Its totient is φ = 78065812157760.

The previous prime is 121002221010971. The next prime is 121002221011117. The reversal of 121002221011101 is 101110122200121.

It is a happy number.

It is not a de Polignac number, because 121002221011101 - 2¹³ = 121002221002909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121002221011201) 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, 104825955 + ... + 105973983.

It is an arithmetic number, because the mean of its divisors is an integer number (10408811456160).

Almost surely, 2^{121002221011101} is an apocalyptic number.

It is an amenable number.

121002221011101 is a deficient number, since it is larger than the sum of its proper divisors (45538762287459).

121002221011101 is a wasteful number, since it uses less digits than its factorization.

121002221011101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2281396.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 121002221011101 its reverse (101110122200121), we get a palindrome (222112343211222).

The spelling of 121002221011101 in words is "one hundred twenty-one trillion, two billion, two hundred twenty-one million, eleven thousand, one hundred one".