124121103221 has 16 divisors (see below), whose sum is σ = 127711454976. Its totient is φ = 120558240000.

The previous prime is 124121103181. The next prime is 124121103229. The reversal of 124121103221 is 122301121421.

It is a cyclic number.

It is not a de Polignac number, because 124121103221 - 2⁶ = 124121103157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 124121103193 and 124121103202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124121103229) 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, 19118786 + ... + 19125276.

It is an arithmetic number, because the mean of its divisors is an integer number (7981965936).

Almost surely, 2^124121103221 is an apocalyptic number.

It is an amenable number.

124121103221 is a deficient number, since it is larger than the sum of its proper divisors (3590351755).

124121103221 is a wasteful number, since it uses less digits than its factorization.

124121103221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8524.

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

Adding to 124121103221 its reverse (122301121421), we get a palindrome (246422224642).

The spelling of 124121103221 in words is "one hundred twenty-four billion, one hundred twenty-one million, one hundred three thousand, two hundred twenty-one".