212330010043221 has 64 divisors (see below), whose sum is σ = 338751741081600. Its totient is φ = 115732171812096.

The previous prime is 212330010043213. The next prime is 212330010043267. The reversal of 212330010043221 is 122340010033212.

It is not a de Polignac number, because 212330010043221 - 2³ = 212330010043213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212330010043191 and 212330010043200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212330010043121) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2013183730 + ... + 2013289196.

It is an arithmetic number, because the mean of its divisors is an integer number (5292995954400).

Almost surely, 2^{212330010043221} is an apocalyptic number.

212330010043221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

212330010043221 is a deficient number, since it is larger than the sum of its proper divisors (126421731038379).

212330010043221 is a wasteful number, since it uses less digits than its factorization.

212330010043221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145418.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 212330010043221 its reverse (122340010033212), we get a palindrome (334670020076433).

The spelling of 212330010043221 in words is "two hundred twelve trillion, three hundred thirty billion, ten million, forty-three thousand, two hundred twenty-one".