124010123221 has 2 divisors, whose sum is σ = 124010123222. Its totient is φ = 124010123220.

The previous prime is 124010123213. The next prime is 124010123233. The reversal of 124010123221 is 122321010421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108853804900 + 15156318321 = 329930^2 + 123111^2 .

It is a cyclic number.

It is not a de Polignac number, because 124010123221 - 2³ = 124010123213 is a prime.

It is a super-2 number, since 2×124010123221² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124010123621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62005061610 + 62005061611.

It is an arithmetic number, because the mean of its divisors is an integer number (62005061611).

Almost surely, 2^124010123221 is an apocalyptic number.

It is an amenable number.

124010123221 is a deficient number, since it is larger than the sum of its proper divisors (1).

124010123221 is an equidigital number, since it uses as much as digits as its factorization.

124010123221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 124010123221 its reverse (122321010421), we get a palindrome (246331133642).

The spelling of 124010123221 in words is "one hundred twenty-four billion, ten million, one hundred twenty-three thousand, two hundred twenty-one".