122011222122 has 12 divisors (see below), whose sum is σ = 264357647970. Its totient is φ = 40670407368.

The previous prime is 122011222117. The next prime is 122011222127. The reversal of 122011222122 is 221222110221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (122011222117) and next prime (122011222127).

It can be written as a sum of positive squares in only one way, i.e., 107217608481 + 14793613641 = 327441^2 + 121629^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 6778401229 = 122011222122 / (1 + 2 + 2 + 0 + 1 + 1 + 2 + 2 + 2 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 122011222095 and 122011222104.

It is not an unprimeable number, because it can be changed into a prime (122011222127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3389200597 + ... + 3389200632.

Almost surely, 2^122011222122 is an apocalyptic number.

122011222122 is an abundant number, since it is smaller than the sum of its proper divisors (142346425848).

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

122011222122 is a wasteful number, since it uses less digits than its factorization.

122011222122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6778401237 (or 6778401234 counting only the distinct ones).

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

Adding to 122011222122 its reverse (221222110221), we get a palindrome (343233332343).

The spelling of 122011222122 in words is "one hundred twenty-two billion, eleven million, two hundred twenty-two thousand, one hundred twenty-two".