122220101000 has 64 divisors (see below), whose sum is σ = 288247265280. Its totient is φ = 48503044800.

The previous prime is 122220100997. The next prime is 122220101009. The reversal of 122220101000 is 101022221.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (122220101009) 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 15 ways as a sum of consecutive naturals, for example, 354182 + ... + 608181.

It is an arithmetic number, because the mean of its divisors is an integer number (4503863520).

Almost surely, 2^122220101000 is an apocalyptic number.

122220101000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122220101000 is an abundant number, since it is smaller than the sum of its proper divisors (166027164280).

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

122220101000 is a wasteful number, since it uses less digits than its factorization.

122220101000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962511 (or 962497 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 122220101000 its reverse (101022221), we get a palindrome (122321123221).

The spelling of 122220101000 in words is "one hundred twenty-two billion, two hundred twenty million, one hundred one thousand".