20012223332 has 12 divisors (see below), whose sum is σ = 35024337516. Its totient is φ = 10005269760.

The previous prime is 20012223289. The next prime is 20012223409. The reversal of 20012223332 is 23332221002.

It can be written as a sum of positive squares in 2 ways, for example, as 2329606756 + 17682616576 = 48266^2 + 132976^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155393 + ... + 253320.

It is an arithmetic number, because the mean of its divisors is an integer number (2918694793).

Almost surely, 2^20012223332 is an apocalyptic number.

It is an amenable number.

20012223332 is a deficient number, since it is larger than the sum of its proper divisors (15012114184).

20012223332 is a wasteful number, since it uses less digits than its factorization.

20012223332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420958 (or 420956 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20012223332 its reverse (23332221002), we get a palindrome (43344444334).

The spelling of 20012223332 in words is "twenty billion, twelve million, two hundred twenty-three thousand, three hundred thirty-two".