220122202122122 has 4 divisors (see below), whose sum is σ = 330183303183186. Its totient is φ = 110061101061060.

The previous prime is 220122202122113. The next prime is 220122202122161. The reversal of 220122202122122 is 221221202221022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 197035993376401 + 23086208745721 = 14036951^2 + 4804811^2 .

It is a super-2 number, since 2×220122202122122² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55030550530529 + ... + 55030550530532.

Almost surely, 2^{220122202122122} is an apocalyptic number.

220122202122122 is a deficient number, since it is larger than the sum of its proper divisors (110061101061064).

220122202122122 is a wasteful number, since it uses less digits than its factorization.

220122202122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110061101061063.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 220122202122122 its reverse (221221202221022), we get a palindrome (441343404343144).

The spelling of 220122202122122 in words is "two hundred twenty trillion, one hundred twenty-two billion, two hundred two million, one hundred twenty-two thousand, one hundred twenty-two".