20001000001210 has 64 divisors (see below), whose sum is σ = 38238265278720. Its totient is φ = 7511281390080.

The previous prime is 20001000001141. The next prime is 20001000001217. The reversal of 20001000001210 is 1210000010002.

It is a junction number, because it is equal to n+sod(n) for n = 20001000001193 and 20001000001202.

It is not an unprimeable number, because it can be changed into a prime (20001000001217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9244294 + ... + 11200846.

It is an arithmetic number, because the mean of its divisors is an integer number (597472894980).

Almost surely, 2^{20001000001210} is an apocalyptic number.

20001000001210 is a deficient number, since it is larger than the sum of its proper divisors (18237265277510).

20001000001210 is a wasteful number, since it uses less digits than its factorization.

20001000001210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1957063.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 20001000001210 its reverse (1210000010002), we get a palindrome (21211000011212).

The spelling of 20001000001210 in words is "twenty trillion, one billion, one thousand, two hundred ten".