20001210010011 has 6 divisors (see below), whose sum is σ = 28890636681140. Its totient is φ = 13334140006668.

The previous prime is 20001210010003. The next prime is 20001210010021. The reversal of 20001210010011 is 11001001210002.

It is a happy number.

It is not a de Polignac number, because 20001210010011 - 2³ = 20001210010003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 2222356667779 = 20001210010011 / (2 + 0 + 0 + 0 + 1 + 2 + 1 + 0 + 0 + 1 + 0 + 0 + 1 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20001210009975 and 20001210010002.

It is not an unprimeable number, because it can be changed into a prime (20001210010021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1111178333881 + ... + 1111178333898.

Almost surely, 2^{20001210010011} is an apocalyptic number.

20001210010011 is a deficient number, since it is larger than the sum of its proper divisors (8889426671129).

20001210010011 is a wasteful number, since it uses less digits than its factorization.

20001210010011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222356667785 (or 2222356667782 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 20001210010011 its reverse (11001001210002), we get a palindrome (31002211220013).

It can be divided in two parts, 20001 and 210010011, that added together give a palindrome (210030012).

The spelling of 20001210010011 in words is "twenty trillion, one billion, two hundred ten million, ten thousand, eleven".