20100012101210 has 16 divisors (see below), whose sum is σ = 36189091801800. Its totient is φ = 8037989280576.

The previous prime is 20100012101203. The next prime is 20100012101243. The reversal of 20100012101210 is 1210121000102.

It can be written as a sum of positive squares in 4 ways, for example, as 9094066515769 + 11005945585441 = 3015637^2 + 3317521^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20100012101191 and 20100012101200.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251903105 + ... + 251982884.

Almost surely, 2^{20100012101210} is an apocalyptic number.

20100012101210 is a deficient number, since it is larger than the sum of its proper divisors (16089079700590).

20100012101210 is a wasteful number, since it uses less digits than its factorization.

20100012101210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503889985.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20100012101210 its reverse (1210121000102), we get a palindrome (21310133101312).

The spelling of 20100012101210 in words is "twenty trillion, one hundred billion, twelve million, one hundred one thousand, two hundred ten".