20020222312 has 16 divisors (see below), whose sum is σ = 39746029860. Its totient is φ = 9421281024.

The previous prime is 20020222283. The next prime is 20020222331. The reversal of 20020222312 is 21322202002.

It can be written as a sum of positive squares in 2 ways, for example, as 19777921956 + 242300356 = 140634^2 + 15566^2 .

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, 73603623 + ... + 73603894.

Almost surely, 2^20020222312 is an apocalyptic number.

It is an amenable number.

20020222312 is a deficient number, since it is larger than the sum of its proper divisors (19725807548).

20020222312 is a wasteful number, since it uses less digits than its factorization.

20020222312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147207540 (or 147207536 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 20020222312 its reverse (21322202002), we get a palindrome (41342424314).

The spelling of 20020222312 in words is "twenty billion, twenty million, two hundred twenty-two thousand, three hundred twelve".