212331100230 has 192 divisors, whose sum is σ = 575461785600. Its totient is φ = 54259994880.

The previous prime is 212331100193. The next prime is 212331100231. The reversal of 212331100230 is 32001133212.

212331100230 is a `hidden beast` number, since 2 + 1 + 2 + 331 + 100 + 230 = 666.

It is a super-2 number, since 2×212331100230² (a number of 23 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212331100231) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 166012731 + ... + 166014009.

It is an arithmetic number, because the mean of its divisors is an integer number (2997196800).

Almost surely, 2^212331100230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212331100230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287730892800).

212331100230 is an abundant number, since it is smaller than the sum of its proper divisors (363130685370).

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

212331100230 is a wasteful number, since it uses less digits than its factorization.

212331100230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1859 (or 1856 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 212331100230 its reverse (32001133212), we get a palindrome (244332233442).

The spelling of 212331100230 in words is "two hundred twelve billion, three hundred thirty-one million, one hundred thousand, two hundred thirty".