20221211210 has 8 divisors (see below), whose sum is σ = 36398180196. Its totient is φ = 8088484480.

The previous prime is 20221211209. The next prime is 20221211243. The reversal of 20221211210 is 1211212202.

It can be written as a sum of positive squares in 2 ways, for example, as 19031030209 + 1190181001 = 137953^2 + 34499^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1011060551 + ... + 1011060570.

Almost surely, 2^20221211210 is an apocalyptic number.

20221211210 is a deficient number, since it is larger than the sum of its proper divisors (16176968986).

20221211210 is a wasteful number, since it uses less digits than its factorization.

20221211210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022121128.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20221211210 its reverse (1211212202), we get a palindrome (21432423412).

The spelling of 20221211210 in words is "twenty billion, two hundred twenty-one million, two hundred eleven thousand, two hundred ten".