212744222 has 16 divisors (see below), whose sum is σ = 338984352. Its totient is φ = 99790080.

The previous prime is 212744221. The next prime is 212744269. The reversal of 212744222 is 222447212.

212744222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 212744191 and 212744200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212744221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 647 + ... + 20637.

It is an arithmetic number, because the mean of its divisors is an integer number (21186522).

Almost surely, 2^212744222 is an apocalyptic number.

212744222 is a deficient number, since it is larger than the sum of its proper divisors (126240130).

212744222 is a wasteful number, since it uses less digits than its factorization.

212744222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20323.

The product of its digits is 3584, while the sum is 26.

The square root of 212744222 is about 14585.7540771809. The cubic root of 212744222 is about 596.9701161686.

The spelling of 212744222 in words is "two hundred twelve million, seven hundred forty-four thousand, two hundred twenty-two".