123202122202 has 4 divisors (see below), whose sum is σ = 184803183306. Its totient is φ = 61601061100.

The previous prime is 123202122157. The next prime is 123202122229. The reversal of 123202122202 is 202221202321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 202221202321 = 31 ⋅6523264591.

It can be written as a sum of positive squares in only one way, i.e., 106955815681 + 16246306521 = 327041^2 + 127461^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 123202122202.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30800530549 + ... + 30800530552.

Almost surely, 2^123202122202 is an apocalyptic number.

123202122202 is a deficient number, since it is larger than the sum of its proper divisors (61601061104).

123202122202 is an equidigital number, since it uses as much as digits as its factorization.

123202122202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61601061103.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 123202122202 its reverse (202221202321), we get a palindrome (325423324523).

The spelling of 123202122202 in words is "one hundred twenty-three billion, two hundred two million, one hundred twenty-two thousand, two hundred two".