20002100210212 has 12 divisors (see below), whose sum is σ = 35060777615836. Its totient is φ = 9984735177120.

The previous prime is 20002100210177. The next prime is 20002100210231. The reversal of 20002100210212 is 21201200120002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4172476216896 + 15829623993316 = 2042664^2 + 3978646^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20002100210192 and 20002100210201.

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, 4078729239 + ... + 4078734142.

Almost surely, 2^{20002100210212} is an apocalyptic number.

It is an amenable number.

20002100210212 is a deficient number, since it is larger than the sum of its proper divisors (15058677405624).

20002100210212 is a wasteful number, since it uses less digits than its factorization.

20002100210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8157463998 (or 8157463996 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20002100210212 its reverse (21201200120002), we get a palindrome (41203300330214).

The spelling of 20002100210212 in words is "twenty trillion, two billion, one hundred million, two hundred ten thousand, two hundred twelve".