20010212210011 has 4 divisors (see below), whose sum is σ = 20011747572712. Its totient is φ = 20008676847312.

The previous prime is 20010212209987. The next prime is 20010212210047. The reversal of 20010212210011 is 11001221201002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20010212210011 - 2¹⁵ = 20010212177243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20010212209973 and 20010212210000.

It is not an unprimeable number, because it can be changed into a prime (20010212210411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 767661801 + ... + 767687866.

It is an arithmetic number, because the mean of its divisors is an integer number (5002936893178).

Almost surely, 2^{20010212210011} is an apocalyptic number.

20010212210011 is a deficient number, since it is larger than the sum of its proper divisors (1535362701).

20010212210011 is a wasteful number, since it uses less digits than its factorization.

20010212210011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535362700.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20010212210011 its reverse (11001221201002), we get a palindrome (31011433411013).

The spelling of 20010212210011 in words is "twenty trillion, ten billion, two hundred twelve million, two hundred ten thousand, eleven".