22132300212 has 108 divisors (see below), whose sum is σ = 63156310308. Its totient is φ = 6525446400.

The previous prime is 22132300207. The next prime is 22132300231. The reversal of 22132300212 is 21200323122.

22132300212 is a `hidden beast` number, since 22 + 132 + 300 + 212 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 19688579856 + 2443720356 = 140316^2 + 49434^2 .

It is a super-3 number, since 3×22132300212³ (a number of 32 digits) contains 333 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 an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 92512 + ... + 229832.

It is an arithmetic number, because the mean of its divisors is an integer number (584780651).

Almost surely, 2^22132300212 is an apocalyptic number.

22132300212 is a gapful number since it is divisible by the number (22) 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 22132300212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31578155154).

22132300212 is an abundant number, since it is smaller than the sum of its proper divisors (41024010096).

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

22132300212 is a wasteful number, since it uses less digits than its factorization.

22132300212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137390 (or 137374 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 22132300212 its reverse (21200323122), we get a palindrome (43332623334).

The spelling of 22132300212 in words is "twenty-two billion, one hundred thirty-two million, three hundred thousand, two hundred twelve".