122212212200010 has 80 divisors (see below), whose sum is σ = 331523157590856. Its totient is φ = 32301516828672.

The previous prime is 122212212199951. The next prime is 122212212200011. The reversal of 122212212200010 is 10002212212221.

It is a happy number.

122212212200010 is a `hidden beast` number, since 1 + 2 + 221 + 221 + 220 + 0 + 0 + 1 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 54948610529289 + 67263601670721 = 7412733^2 + 8201439^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (122212212200011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 667515879 + ... + 667698938.

Almost surely, 2^{122212212200010} is an apocalyptic number.

122212212200010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122212212200010 is an abundant number, since it is smaller than the sum of its proper divisors (209310945390846).

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

122212212200010 is a wasteful number, since it uses less digits than its factorization.

122212212200010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335214949 (or 1335214940 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 122212212200010 its reverse (10002212212221), we get a palindrome (132214424412231).

The spelling of 122212212200010 in words is "one hundred twenty-two trillion, two hundred twelve billion, two hundred twelve million, two hundred thousand, ten".