212132213320 has 16 divisors (see below), whose sum is σ = 477297480060. Its totient is φ = 84852885312.

The previous prime is 212132213299. The next prime is 212132213333. The reversal of 212132213320 is 23312231212.

It can be written as a sum of positive squares in 2 ways, for example, as 211473059044 + 659154276 = 459862^2 + 25674^2 .

It is a junction number, because it is equal to n+sod(n) for n = 212132213291 and 212132213300.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2651652627 + ... + 2651652706.

Almost surely, 2^212132213320 is an apocalyptic number.

212132213320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212132213320 is an abundant number, since it is smaller than the sum of its proper divisors (265165266740).

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

212132213320 is a wasteful number, since it uses less digits than its factorization.

212132213320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5303305344 (or 5303305340 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 212132213320 its reverse (23312231212), we get a palindrome (235444444532).

The spelling of 212132213320 in words is "two hundred twelve billion, one hundred thirty-two million, two hundred thirteen thousand, three hundred twenty".