121103122020101 has 72 divisors (see below), whose sum is σ = 136519131672000. Its totient is φ = 107351442132480.

The previous prime is 121103122020077. The next prime is 121103122020103. The reversal of 121103122020101 is 101020221301121.

It is a happy number.

It is not a de Polignac number, because 121103122020101 - 2¹⁸ = 121103121757957 is a prime.

It is a super-2 number, since 2×121103122020101² (a number of 29 digits) contains 22 as substring.

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 121103122020101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121103122020103) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4685008625 + ... + 4685034473.

It is an arithmetic number, because the mean of its divisors is an integer number (1896099051000).

Almost surely, 2^{121103122020101} is an apocalyptic number.

It is an amenable number.

121103122020101 is a deficient number, since it is larger than the sum of its proper divisors (15416009651899).

121103122020101 is a wasteful number, since it uses less digits than its factorization.

121103122020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26191 (or 26125 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 121103122020101 its reverse (101020221301121), we get a palindrome (222123343321222).

The spelling of 121103122020101 in words is "one hundred twenty-one trillion, one hundred three billion, one hundred twenty-two million, twenty thousand, one hundred one".