122221020122 has 8 divisors (see below), whose sum is σ = 183333127872. Its totient is φ = 61109977500.

The previous prime is 122221020109. The next prime is 122221020127. The reversal of 122221020122 is 221020122221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 122221020122.

It is not an unprimeable number, because it can be changed into a prime (122221020127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151997 + ... + 517247.

It is an arithmetic number, because the mean of its divisors is an integer number (22916640984).

Almost surely, 2^122221020122 is an apocalyptic number.

122221020122 is a deficient number, since it is larger than the sum of its proper divisors (61112107750).

122221020122 is a wasteful number, since it uses less digits than its factorization.

122221020122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532564.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 122221020122 its reverse (221020122221), we get a palindrome (343241142343).

The spelling of 122221020122 in words is "one hundred twenty-two billion, two hundred twenty-one million, twenty thousand, one hundred twenty-two".