121224124101 has 16 divisors (see below), whose sum is σ = 165211147008. Its totient is φ = 79029508800.

The previous prime is 121224124081. The next prime is 121224124169. The reversal of 121224124101 is 101421422121.

It is not a de Polignac number, because 121224124101 - 2⁶ = 121224124037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121224124171) 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, 197470 + ... + 530511.

It is an arithmetic number, because the mean of its divisors is an integer number (10325696688).

Almost surely, 2^121224124101 is an apocalyptic number.

It is an amenable number.

121224124101 is a deficient number, since it is larger than the sum of its proper divisors (43987022907).

121224124101 is a wasteful number, since it uses less digits than its factorization.

121224124101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729212.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 121224124101 its reverse (101421422121), we get a palindrome (222645546222).

The spelling of 121224124101 in words is "one hundred twenty-one billion, two hundred twenty-four million, one hundred twenty-four thousand, one hundred one".