124771221 has 12 divisors (see below), whose sum is σ = 180394240. Its totient is φ = 83102760.

The previous prime is 124771201. The next prime is 124771223. The reversal of 124771221 is 122177421.

It is a happy number.

It is not a de Polignac number, because 124771221 - 2⁵ = 124771189 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 (124771223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4620 + ... + 16458.

Almost surely, 2^124771221 is an apocalyptic number.

It is an amenable number.

124771221 is a deficient number, since it is larger than the sum of its proper divisors (55623019).

124771221 is a wasteful number, since it uses less digits than its factorization.

124771221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13016 (or 13013 counting only the distinct ones).

The product of its digits is 1568, while the sum is 27.

The square root of 124771221 is about 11170.1038938767. The cubic root of 124771221 is about 499.6947750467.

The spelling of 124771221 in words is "one hundred twenty-four million, seven hundred seventy-one thousand, two hundred twenty-one".