20021212303010 has 16 divisors (see below), whose sum is σ = 36130825294200. Its totient is φ = 7987897554816.

The previous prime is 20021212302997. The next prime is 20021212303091. The reversal of 20021212303010 is 1030321212002.

It can be written as a sum of positive squares in 4 ways, for example, as 14570794443241 + 5450417859769 = 3817171^2 + 2334613^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20021212303010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2573416715 + ... + 2573424494.

Almost surely, 2^{20021212303010} is an apocalyptic number.

20021212303010 is a deficient number, since it is larger than the sum of its proper divisors (16109612991190).

20021212303010 is a wasteful number, since it uses less digits than its factorization.

20021212303010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5146841605.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20021212303010 its reverse (1030321212002), we get a palindrome (21051533515012).

The spelling of 20021212303010 in words is "twenty trillion, twenty-one billion, two hundred twelve million, three hundred three thousand, ten".