20012010211 has 4 divisors (see below), whose sum is σ = 20082724312. Its totient is φ = 19941296112.

The previous prime is 20012010203. The next prime is 20012010253. The reversal of 20012010211 is 11201021002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11201021002 = 2 ⋅5600510501.

It is a cyclic number.

It is not a de Polignac number, because 20012010211 - 2³ = 20012010203 is a prime.

It is a super-3 number, since 3×20012010211³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20012310211) 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 3 ways as a sum of consecutive naturals, for example, 35356626 + ... + 35357191.

It is an arithmetic number, because the mean of its divisors is an integer number (5020681078).

Almost surely, 2^20012010211 is an apocalyptic number.

20012010211 is a deficient number, since it is larger than the sum of its proper divisors (70714101).

20012010211 is an equidigital number, since it uses as much as digits as its factorization.

20012010211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70714100.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20012010211 its reverse (11201021002), we get a palindrome (31213031213).

The spelling of 20012010211 in words is "twenty billion, twelve million, ten thousand, two hundred eleven".