121011012221101 has 16 divisors (see below), whose sum is σ = 124235343986688. Its totient is φ = 117813774156400.

The previous prime is 121011012221083. The next prime is 121011012221191. The reversal of 121011012221101 is 101122210110121.

It is a cyclic number.

It is not a de Polignac number, because 121011012221101 - 2²⁹ = 121010475350189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121011012221191) 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, 553152126 + ... + 553370848.

It is an arithmetic number, because the mean of its divisors is an integer number (7764708999168).

Almost surely, 2^{121011012221101} is an apocalyptic number.

It is an amenable number.

121011012221101 is a deficient number, since it is larger than the sum of its proper divisors (3224331765587).

121011012221101 is a wasteful number, since it uses less digits than its factorization.

121011012221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280592.

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

Adding to 121011012221101 its reverse (101122210110121), we get a palindrome (222133222331222).

The spelling of 121011012221101 in words is "one hundred twenty-one trillion, eleven billion, twelve million, two hundred twenty-one thousand, one hundred one".