122222000000 has 224 divisors, whose sum is σ = 317709995760. Its totient is φ = 46745600000.

The previous prime is 122221999993. The next prime is 122222000009. The reversal of 122222000000 is 222221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122222000009) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 45998672 + ... + 46001328.

Almost surely, 2^122222000000 is an apocalyptic number.

122222000000 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 122222000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158854997880).

122222000000 is an abundant number, since it is smaller than the sum of its proper divisors (195487995760).

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

122222000000 is an frugal number, since it uses more digits than its factorization.

122222000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2724 (or 2687 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 122222000000 its reverse (222221), we get a palindrome (122222222221).

The spelling of 122222000000 in words is "one hundred twenty-two billion, two hundred twenty-two million", and thus it is an aban number.