20100022312 has 32 divisors (see below), whose sum is σ = 38468017800. Its totient is φ = 9842569984.

The previous prime is 20100022289. The next prime is 20100022321. The reversal of 20100022312 is 21322000102.

It can be written as a sum of positive squares in 4 ways, for example, as 14439867556 + 5660154756 = 120166^2 + 75234^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20100022292 and 20100022301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193614 + ... + 278722.

Almost surely, 2^20100022312 is an apocalyptic number.

It is an amenable number.

20100022312 is a deficient number, since it is larger than the sum of its proper divisors (18367995488).

20100022312 is a wasteful number, since it uses less digits than its factorization.

20100022312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85725 (or 85721 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20100022312 its reverse (21322000102), we get a palindrome (41422022414).

The spelling of 20100022312 in words is "twenty billion, one hundred million, twenty-two thousand, three hundred twelve".