212322232100 has 216 divisors, whose sum is σ = 522603113760. Its totient is φ = 74234432000.

The previous prime is 212322232097. The next prime is 212322232121. The reversal of 212322232100 is 1232223212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 143363360 + ... + 143364840.

It is an arithmetic number, because the mean of its divisors is an integer number (2419458860).

Almost surely, 2^212322232100 is an apocalyptic number.

212322232100 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 212322232100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261301556880).

212322232100 is an abundant number, since it is smaller than the sum of its proper divisors (310280881660).

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

212322232100 is a wasteful number, since it uses less digits than its factorization.

212322232100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659 (or 1605 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 212322232100 its reverse (1232223212), we get a palindrome (213554455312).

The spelling of 212322232100 in words is "two hundred twelve billion, three hundred twenty-two million, two hundred thirty-two thousand, one hundred".