123122121202 has 8 divisors (see below), whose sum is σ = 184684934700. Its totient is φ = 61560476304.

The previous prime is 123122121191. The next prime is 123122121209. The reversal of 123122121202 is 202121221321.

It can be written as a sum of positive squares in 2 ways, for example, as 123088003921 + 34117281 = 350839^2 + 5841^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 123122121202.

It is not an unprimeable number, because it can be changed into a prime (123122121209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52624 + ... + 499012.

Almost surely, 2^123122121202 is an apocalyptic number.

123122121202 is a deficient number, since it is larger than the sum of its proper divisors (61562813498).

123122121202 is a wasteful number, since it uses less digits than its factorization.

123122121202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584300.

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

Adding to 123122121202 its reverse (202121221321), we get a palindrome (325243342523).

The spelling of 123122121202 in words is "one hundred twenty-three billion, one hundred twenty-two million, one hundred twenty-one thousand, two hundred two".