20322212 has 6 divisors (see below), whose sum is σ = 35563878. Its totient is φ = 10161104.

The previous prime is 20322199. The next prime is 20322227. The reversal of 20322212 is 21222302.

It can be written as a sum of positive squares in only one way, i.e., 19589476 + 732736 = 4426^2 + 856^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2540273 + ... + 2540280.

It is an arithmetic number, because the mean of its divisors is an integer number (5927313).

Almost surely, 2^20322212 is an apocalyptic number.

It is an amenable number.

20322212 is a deficient number, since it is larger than the sum of its proper divisors (15241666).

20322212 is a wasteful number, since it uses less digits than its factorization.

20322212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5080557 (or 5080555 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 20322212 is about 4508.0164152319. The cubic root of 20322212 is about 272.8916994065.

Adding to 20322212 its reverse (21222302), we get a palindrome (41544514).

The spelling of 20322212 in words is "twenty million, three hundred twenty-two thousand, two hundred twelve".