20110220211 has 16 divisors (see below), whose sum is σ = 27707931648. Its totient is φ = 12960578400.

The previous prime is 20110220203. The next prime is 20110220219. The reversal of 20110220211 is 11202201102.

It is an interprime number because it is at equal distance from previous prime (20110220203) and next prime (20110220219).

It is not a de Polignac number, because 20110220211 - 2³ = 20110220203 is a prime.

It is a super-3 number, since 3×20110220211³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (20110220219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26100 + ... + 202241.

It is an arithmetic number, because the mean of its divisors is an integer number (1731745728).

Almost surely, 2^20110220211 is an apocalyptic number.

20110220211 is a deficient number, since it is larger than the sum of its proper divisors (7597711437).

20110220211 is a wasteful number, since it uses less digits than its factorization.

20110220211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229322.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20110220211 its reverse (11202201102), we get a palindrome (31312421313).

The spelling of 20110220211 in words is "twenty billion, one hundred ten million, two hundred twenty thousand, two hundred eleven".