122222011000 has 64 divisors (see below), whose sum is σ = 286326200160. Its totient is φ = 48832960000.

The previous prime is 122222010983. The next prime is 122222011001. The reversal of 122222011000 is 110222221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122222011001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 811635 + ... + 950365.

Almost surely, 2^122222011000 is an apocalyptic number.

122222011000 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 122222011000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143163100080).

122222011000 is an abundant number, since it is smaller than the sum of its proper divisors (164104189160).

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

122222011000 is a wasteful number, since it uses less digits than its factorization.

122222011000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139633 (or 139619 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 122222011000 its reverse (110222221), we get a palindrome (122332233221).

The spelling of 122222011000 in words is "one hundred twenty-two billion, two hundred twenty-two million, eleven thousand".