20013224211 has 24 divisors (see below), whose sum is σ = 30730465584. Its totient is φ = 12507264000.

The previous prime is 20013224201. The next prime is 20013224219. The reversal of 20013224211 is 11242231002.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-20013224211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20013224219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 222166 + ... + 298971.

It is an arithmetic number, because the mean of its divisors is an integer number (1280436066).

Almost surely, 2^20013224211 is an apocalyptic number.

20013224211 is a deficient number, since it is larger than the sum of its proper divisors (10717241373).

20013224211 is a wasteful number, since it uses less digits than its factorization.

20013224211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521411 (or 521408 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 20013224211 its reverse (11242231002), we get a palindrome (31255455213).

The spelling of 20013224211 in words is "twenty billion, thirteen million, two hundred twenty-four thousand, two hundred eleven".