122002222122 has 24 divisors (see below), whose sum is σ = 288368889120. Its totient is φ = 36970370280.

The previous prime is 122002222109. The next prime is 122002222123. The reversal of 122002222122 is 221222200221.

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 = 122002222095 and 122002222104.

It is not an unprimeable number, because it can be changed into a prime (122002222123) 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 11 ways as a sum of consecutive naturals, for example, 308086222 + ... + 308086617.

It is an arithmetic number, because the mean of its divisors is an integer number (12015370380).

Almost surely, 2^122002222122 is an apocalyptic number.

122002222122 is an abundant number, since it is smaller than the sum of its proper divisors (166366666998).

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

122002222122 is a wasteful number, since it uses less digits than its factorization.

122002222122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616172858 (or 616172855 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 122002222122 its reverse (221222200221), we get a palindrome (343224422343).

It can be divided in two parts, 12200 and 2222122, that added together give a palindrome (2234322).

The spelling of 122002222122 in words is "one hundred twenty-two billion, two million, two hundred twenty-two thousand, one hundred twenty-two".