20001201011210 has 64 divisors (see below), whose sum is σ = 37801862638848. Its totient is φ = 7604897186304.

The previous prime is 20001201011191. The next prime is 20001201011213. The reversal of 20001201011210 is 1211010210002.

It is a junction number, because it is equal to n+sod(n) for n = 20001201011191 and 20001201011200.

It is not an unprimeable number, because it can be changed into a prime (20001201011213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 467591384 + ... + 467634156.

It is an arithmetic number, because the mean of its divisors is an integer number (590654103732).

Almost surely, 2^{20001201011210} is an apocalyptic number.

20001201011210 is a deficient number, since it is larger than the sum of its proper divisors (17800661627638).

20001201011210 is a wasteful number, since it uses less digits than its factorization.

20001201011210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55439.

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

Adding to 20001201011210 its reverse (1211010210002), we get a palindrome (21212211221212).

The spelling of 20001201011210 in words is "twenty trillion, one billion, two hundred one million, eleven thousand, two hundred ten".