20212330 has 16 divisors (see below), whose sum is σ = 36516744. Its totient is φ = 8055040.

The previous prime is 20212327. The next prime is 20212373. The reversal of 20212330 is 3321202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12981609 + 7230721 = 3603^2 + 2689^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20212330.

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, 787 + ... + 6406.

Almost surely, 2^20212330 is an apocalyptic number.

20212330 is a deficient number, since it is larger than the sum of its proper divisors (16304414).

20212330 is a wasteful number, since it uses less digits than its factorization.

20212330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7481.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 20212330 is about 4495.8124960901. The cubic root of 20212330 is about 272.3989693647.

Adding to 20212330 its reverse (3321202), we get a palindrome (23533532).

The spelling of 20212330 in words is "twenty million, two hundred twelve thousand, three hundred thirty".