122222000 has 80 divisors (see below), whose sum is σ = 308498112. Its totient is φ = 46745600.

The previous prime is 122221999. The next prime is 122222017. The reversal of 122222000 is 222221.

It is a tau number, because it is divible by the number of its divisors (80).

It is a plaindrome in base 14.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44672 + ... + 47328.

Almost surely, 2^122222000 is an apocalyptic number.

122222000 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 122222000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154249056).

122222000 is an abundant number, since it is smaller than the sum of its proper divisors (186276112).

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

122222000 is a wasteful number, since it uses less digits than its factorization.

122222000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2703 (or 2687 counting only the distinct ones).

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

The square root of 122222000 is about 11055.4059174686. The cubic root of 122222000 is about 496.2682168823.

Adding to 122222000 its reverse (222221), we get a palindrome (122444221).

The spelling of 122222000 in words is "one hundred twenty-two million, two hundred twenty-two thousand".