212323033100 has 144 divisors (see below), whose sum is σ = 498758910720. Its totient is φ = 78265958400.

The previous prime is 212323033081. The next prime is 212323033103. The reversal of 212323033100 is 1330323212.

It is a super-2 number, since 2×212323033100² (a number of 23 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (212323033103) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6546524 + ... + 6578876.

Almost surely, 2^212323033100 is an apocalyptic number.

212323033100 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 212323033100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249379455360).

212323033100 is an abundant number, since it is smaller than the sum of its proper divisors (286435877620).

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

212323033100 is a wasteful number, since it uses less digits than its factorization.

212323033100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32500 (or 32493 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 212323033100 its reverse (1330323212), we get a palindrome (213653356312).

The spelling of 212323033100 in words is "two hundred twelve billion, three hundred twenty-three million, thirty-three thousand, one hundred".