212011322 has 16 divisors (see below), whose sum is σ = 324145800. Its totient is φ = 103982400.

The previous prime is 212011307. The next prime is 212011333. The reversal of 212011322 is 223110212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 187991521 + 24019801 = 13711^2 + 4901^2 .

It is a junction number, because it is equal to n+sod(n) for n = 212011297 and 212011306.

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, 17204 + ... + 26832.

Almost surely, 2^212011322 is an apocalyptic number.

212011322 is a deficient number, since it is larger than the sum of its proper divisors (112134478).

212011322 is a wasteful number, since it uses less digits than its factorization.

212011322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9841.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 212011322 is about 14560.6085724464. The cubic root of 212011322 is about 596.2838103733.

Adding to 212011322 its reverse (223110212), we get a palindrome (435121534).

The spelling of 212011322 in words is "two hundred twelve million, eleven thousand, three hundred twenty-two".