124221142 has 16 divisors (see below), whose sum is σ = 197879760. Its totient is φ = 58283008.

The previous prime is 124221131. The next prime is 124221179. The reversal of 124221142 is 241122421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6534 + ... + 17062.

It is an arithmetic number, because the mean of its divisors is an integer number (12367485).

Almost surely, 2^124221142 is an apocalyptic number.

124221142 is a deficient number, since it is larger than the sum of its proper divisors (73658618).

124221142 is a wasteful number, since it uses less digits than its factorization.

124221142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10895.

The product of its digits is 256, while the sum is 19.

The square root of 124221142 is about 11145.4538714222. The cubic root of 124221142 is about 498.9593582990.

Adding to 124221142 its reverse (241122421), we get a palindrome (365343563).

The spelling of 124221142 in words is "one hundred twenty-four million, two hundred twenty-one thousand, one hundred forty-two".