212440342322 has 16 divisors (see below), whose sum is σ = 343346351040. Its totient is φ = 97999820112.

The previous prime is 212440342297. The next prime is 212440342399. The reversal of 212440342322 is 223243044212.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2012918 + ... + 2115825.

It is an arithmetic number, because the mean of its divisors is an integer number (21459146940).

Almost surely, 2^212440342322 is an apocalyptic number.

212440342322 is a deficient number, since it is larger than the sum of its proper divisors (130906008718).

212440342322 is a wasteful number, since it uses less digits than its factorization.

212440342322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4130737.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 212440342322 its reverse (223243044212), we get a palindrome (435683386534).

The spelling of 212440342322 in words is "two hundred twelve billion, four hundred forty million, three hundred forty-two thousand, three hundred twenty-two".