122210221122 has 40 divisors (see below), whose sum is σ = 298736100432. Its totient is φ = 37033399800.

The previous prime is 122210221121. The next prime is 122210221151. The reversal of 122210221122 is 221122012221.

It is a happy number.

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 = 122210221095 and 122210221104.

It is not an unprimeable number, because it can be changed into a prime (122210221121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 34288404 + ... + 34291967.

Almost surely, 2^122210221122 is an apocalyptic number.

122210221122 is an abundant number, since it is smaller than the sum of its proper divisors (176525879310).

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

122210221122 is a wasteful number, since it uses less digits than its factorization.

122210221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68580396 (or 68580387 counting only the distinct ones).

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

Adding to 122210221122 its reverse (221122012221), we get a palindrome (343332233343).

The spelling of 122210221122 in words is "one hundred twenty-two billion, two hundred ten million, two hundred twenty-one thousand, one hundred twenty-two".