122212000000 has 126 divisors (see below), whose sum is σ = 304939338914. Its totient is φ = 48883200000.

The previous prime is 122211999997. The next prime is 122212000003. The reversal of 122212000000 is 212221.

It is an interprime number because it is at equal distance from previous prime (122211999997) and next prime (122212000003).

It can be written as a sum of positive squares in 7 ways, for example, as 117325430784 + 4886569216 = 342528^2 + 69904^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (122212000003) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 3984724 + ... + 4015276.

Almost surely, 2^122212000000 is an apocalyptic number.

122212000000 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 122212000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152469669457).

122212000000 is an abundant number, since it is smaller than the sum of its proper divisors (182727338914).

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

122212000000 is an frugal number, since it uses more digits than its factorization.

122212000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30599 (or 30560 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 122212000000 its reverse (212221), we get a palindrome (122212212221).

The spelling of 122212000000 in words is "one hundred twenty-two billion, two hundred twelve million", and thus it is an aban number.