122221223300 has 72 divisors (see below), whose sum is σ = 289569591360. Its totient is φ = 44407427200.

The previous prime is 122221223269. The next prime is 122221223353. The reversal of 122221223300 is 3322122221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1306697 + ... + 1397103.

It is an arithmetic number, because the mean of its divisors is an integer number (4021799880).

Almost surely, 2^122221223300 is an apocalyptic number.

122221223300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122221223300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144784795680).

122221223300 is an abundant number, since it is smaller than the sum of its proper divisors (167348368060).

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

122221223300 is a wasteful number, since it uses less digits than its factorization.

122221223300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91661 (or 91654 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 122221223300 its reverse (3322122221), we get a palindrome (125543345521).

The spelling of 122221223300 in words is "one hundred twenty-two billion, two hundred twenty-one million, two hundred twenty-three thousand, three hundred".