122222202122 has 4 divisors (see below), whose sum is σ = 183333303186. Its totient is φ = 61111101060.

The previous prime is 122222202119. The next prime is 122222202131. The reversal of 122222202122 is 221202222221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221202222221 = 509 ⋅434581969.

It can be written as a sum of positive squares in only one way, i.e., 108385149961 + 13837052161 = 329219^2 + 117631^2 .

It is a junction number, because it is equal to n+sod(n) for n = 122222202094 and 122222202103.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30555550529 + ... + 30555550532.

Almost surely, 2^122222202122 is an apocalyptic number.

122222202122 is a deficient number, since it is larger than the sum of its proper divisors (61111101064).

122222202122 is an equidigital number, since it uses as much as digits as its factorization.

122222202122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61111101063.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 122222202122 its reverse (221202222221), we get a palindrome (343424424343).

The spelling of 122222202122 in words is "one hundred twenty-two billion, two hundred twenty-two million, two hundred two thousand, one hundred twenty-two".