122221112202 has 96 divisors (see below), whose sum is σ = 306988665984. Its totient is φ = 34421760000.

The previous prime is 122221112183. The next prime is 122221112207. The reversal of 122221112202 is 202211122221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (122221112207) 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 47 ways as a sum of consecutive naturals, for example, 3047802 + ... + 3087642.

It is an arithmetic number, because the mean of its divisors is an integer number (3197798604).

Almost surely, 2^122221112202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122221112202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153494332992).

122221112202 is an abundant number, since it is smaller than the sum of its proper divisors (184767553782).

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

122221112202 is a wasteful number, since it uses less digits than its factorization.

122221112202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40204 (or 40201 counting only the distinct ones).

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

Adding to 122221112202 its reverse (202211122221), we get a palindrome (324432234423).

The spelling of 122221112202 in words is "one hundred twenty-two billion, two hundred twenty-one million, one hundred twelve thousand, two hundred two".