124220002 has 4 divisors (see below), whose sum is σ = 186330006. Its totient is φ = 62110000.

The previous prime is 124219981. The next prime is 124220009. The reversal of 124220002 is 200022421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 200022421 = 23 ⋅8696627.

It can be written as a sum of positive squares in only one way, i.e., 79584241 + 44635761 = 8921^2 + 6681^2 .

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (124220009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31054999 + ... + 31055002.

Almost surely, 2^124220002 is an apocalyptic number.

124220002 is a deficient number, since it is larger than the sum of its proper divisors (62110004).

124220002 is an equidigital number, since it uses as much as digits as its factorization.

124220002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62110003.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 124220002 is about 11145.4027293768. The cubic root of 124220002 is about 498.9578319474.

Adding to 124220002 its reverse (200022421), we get a palindrome (324242423).

The spelling of 124220002 in words is "one hundred twenty-four million, two hundred twenty thousand, two".