212122005200 has 120 divisors (see below), whose sum is σ = 583495397952. Its totient is φ = 72594063360.

The previous prime is 212122005127. The next prime is 212122005203. The reversal of 212122005200 is 2500221212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212122005203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1462352 + ... + 1600848.

Almost surely, 2^212122005200 is an apocalyptic number.

212122005200 is a gapful number since it is divisible by the number (20) 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 212122005200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291747698976).

212122005200 is an abundant number, since it is smaller than the sum of its proper divisors (371373392752).

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

212122005200 is a wasteful number, since it uses less digits than its factorization.

212122005200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139069 (or 139058 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

Adding to 212122005200 its reverse (2500221212), we get a palindrome (214622226412).

The spelling of 212122005200 in words is "two hundred twelve billion, one hundred twenty-two million, five thousand, two hundred".