212223221343 has 32 divisors (see below), whose sum is σ = 369031096320. Its totient is φ = 117992829600.

The previous prime is 212223221341. The next prime is 212223221381. The reversal of 212223221343 is 343122322212.

212223221343 is a `hidden beast` number, since 212 + 2 + 232 + 213 + 4 + 3 = 666.

It is not a de Polignac number, because 212223221343 - 2¹ = 212223221341 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212223221341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15166983 + ... + 15180968.

It is an arithmetic number, because the mean of its divisors is an integer number (11532221760).

Almost surely, 2^212223221343 is an apocalyptic number.

212223221343 is a deficient number, since it is larger than the sum of its proper divisors (156807874977).

212223221343 is a wasteful number, since it uses less digits than its factorization.

212223221343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30348004 (or 30347998 counting only the distinct ones).

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

Adding to 212223221343 its reverse (343122322212), we get a palindrome (555345543555).

The spelling of 212223221343 in words is "two hundred twelve billion, two hundred twenty-three million, two hundred twenty-one thousand, three hundred forty-three".