121232124101 has 12 divisors (see below), whose sum is σ = 133626376800. Its totient is φ = 109903988040.

The previous prime is 121232124053. The next prime is 121232124107. The reversal of 121232124101 is 101421232121.

It is a de Polignac number, because none of the positive numbers 2^k-121232124101 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 (121232124107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1351991 + ... + 1438868.

It is an arithmetic number, because the mean of its divisors is an integer number (11135531400).

Almost surely, 2^121232124101 is an apocalyptic number.

121232124101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121232124101 is a deficient number, since it is larger than the sum of its proper divisors (12394252699).

121232124101 is a wasteful number, since it uses less digits than its factorization.

121232124101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2791240 (or 2791229 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 121232124101 its reverse (101421232121), we get a palindrome (222653356222).

The spelling of 121232124101 in words is "one hundred twenty-one billion, two hundred thirty-two million, one hundred twenty-four thousand, one hundred one".