212332211100 has 54 divisors (see below), whose sum is σ = 665543522280. Its totient is φ = 56621922720.

The previous prime is 212332211041. The next prime is 212332211101. The reversal of 212332211100 is 1112233212.

212332211100 is a `hidden beast` number, since 21 + 2 + 332 + 211 + 100 = 666.

It is a super-2 number, since 2×212332211100² (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 (212332211101) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 117961440 + ... + 117963239.

Almost surely, 2^212332211100 is an apocalyptic number.

212332211100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212332211100 is an abundant number, since it is smaller than the sum of its proper divisors (453211311180).

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

212332211100 is a wasteful number, since it uses less digits than its factorization.

212332211100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235924699 (or 235924689 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 212332211100 its reverse (1112233212), we get a palindrome (213444444312).

The spelling of 212332211100 in words is "two hundred twelve billion, three hundred thirty-two million, two hundred eleven thousand, one hundred".