122211000000 has 588 divisors, whose sum is σ = 450923603104. Its totient is φ = 31622400000.

The previous prime is 122210999993. The next prime is 122211000019. The reversal of 122211000000 is 112221.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 332999817 + ... + 333000183.

Almost surely, 2^122211000000 is an apocalyptic number.

122211000000 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 122211000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225461801552).

122211000000 is an abundant number, since it is smaller than the sum of its proper divisors (328712603104).

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

122211000000 is an frugal number, since it uses more digits than its factorization.

122211000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452 (or 414 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 122211000000 its reverse (112221), we get a palindrome (122211112221).

The spelling of 122211000000 in words is "one hundred twenty-two billion, two hundred eleven million", and thus it is an aban number.