220021332340212 has 72 divisors (see below), whose sum is σ = 598961126129184. Its totient is φ = 67697270323776.

The previous prime is 220021332340153. The next prime is 220021332340213. The reversal of 220021332340212 is 212043233120022.

220021332340212 is a `hidden beast` number, since 2 + 2 + 0 + 0 + 213 + 3 + 234 + 0 + 212 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220021332340213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14324943 + ... + 25401705.

It is an arithmetic number, because the mean of its divisors is an integer number (8318904529572).

Almost surely, 2^{220021332340212} is an apocalyptic number.

It is an amenable number.

220021332340212 is an abundant number, since it is smaller than the sum of its proper divisors (378939793788972).

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

220021332340212 is a wasteful number, since it uses less digits than its factorization.

220021332340212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11119229 (or 11119224 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 220021332340212 its reverse (212043233120022), we get a palindrome (432064565460234).

The spelling of 220021332340212 in words is "two hundred twenty trillion, twenty-one billion, three hundred thirty-two million, three hundred forty thousand, two hundred twelve".