122022221121 has 32 divisors (see below), whose sum is σ = 191484103680. Its totient is φ = 76532283648.

The previous prime is 122022221119. The next prime is 122022221159. The reversal of 122022221121 is 121122220221.

It is a happy number.

It is not a de Polignac number, because 122022221121 - 2¹ = 122022221119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122022221094 and 122022221103.

It is not an unprimeable number, because it can be changed into a prime (122022221621) 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 31 ways as a sum of consecutive naturals, for example, 1121680 + ... + 1225646.

It is an arithmetic number, because the mean of its divisors is an integer number (5983878240).

Almost surely, 2^122022221121 is an apocalyptic number.

It is an amenable number.

122022221121 is a deficient number, since it is larger than the sum of its proper divisors (69461882559).

122022221121 is a wasteful number, since it uses less digits than its factorization.

122022221121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106550 (or 106544 counting only the distinct ones).

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

Adding to 122022221121 its reverse (121122220221), we get a palindrome (243144441342).

The spelling of 122022221121 in words is "one hundred twenty-two billion, twenty-two million, two hundred twenty-one thousand, one hundred twenty-one".