20010021100012 has 12 divisors (see below), whose sum is σ = 35017582798296. Its totient is φ = 10004997443360.

The previous prime is 20010021099977. The next prime is 20010021100021. The reversal of 20010021100012 is 21000112001002.

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, 692712 + ... + 6363952.

It is an arithmetic number, because the mean of its divisors is an integer number (2918131899858).

Almost surely, 2^{20010021100012} is an apocalyptic number.

It is an amenable number.

20010021100012 is a deficient number, since it is larger than the sum of its proper divisors (15007561698284).

20010021100012 is a wasteful number, since it uses less digits than its factorization.

20010021100012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6553328 (or 6553326 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20010021100012 its reverse (21000112001002), we get a palindrome (41010133101014).

The spelling of 20010021100012 in words is "twenty trillion, ten billion, twenty-one million, one hundred thousand, twelve".