20221000211 has 6 divisors (see below), whose sum is σ = 21341277612. Its totient is φ = 19156736700.

The previous prime is 20221000171. The next prime is 20221000231. The reversal of 20221000211 is 11200012202.

It is a happy number.

It is not a de Polignac number, because 20221000211 - 2²⁶ = 20153891347 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20221000192 and 20221000201.

It is not an unprimeable number, because it can be changed into a prime (20221000231) 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, 28006565 + ... + 28007286.

It is an arithmetic number, because the mean of its divisors is an integer number (3556879602).

Almost surely, 2^20221000211 is an apocalyptic number.

20221000211 is a deficient number, since it is larger than the sum of its proper divisors (1120277401).

20221000211 is an equidigital number, since it uses as much as digits as its factorization.

20221000211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56013889 (or 56013870 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20221000211 its reverse (11200012202), we get a palindrome (31421012413).

The spelling of 20221000211 in words is "twenty billion, two hundred twenty-one million, two hundred eleven", and thus it is an aban number.