122202121122 has 40 divisors (see below), whose sum is σ = 289930529196. Its totient is φ = 38337919488.

The previous prime is 122202121081. The next prime is 122202121127. The reversal of 122202121122 is 221121202221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 121557519801 + 644601321 = 348651^2 + 25389^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 122202121095 and 122202121104.

It is not an unprimeable number, because it can be changed into a prime (122202121127) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 22183543 + ... + 22189050.

Almost surely, 2^122202121122 is an apocalyptic number.

122202121122 is an abundant number, since it is smaller than the sum of its proper divisors (167728408074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122202121122 is a wasteful number, since it uses less digits than its factorization.

122202121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44372624 (or 44372615 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 122202121122 its reverse (221121202221), we get a palindrome (343323323343).

The spelling of 122202121122 in words is "one hundred twenty-two billion, two hundred two million, one hundred twenty-one thousand, one hundred twenty-two".