20221210201211 has 2 divisors, whose sum is σ = 20221210201212. Its totient is φ = 20221210201210.

The previous prime is 20221210201177. The next prime is 20221210201219. The reversal of 20221210201211 is 11210201212202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20221210201211 - 2²² = 20221206006907 is a prime.

It is a super-2 number, since 2×20221210201211² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20221210201211.

It is not a weakly prime, because it can be changed into another prime (20221210201219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110605100605 + 10110605100606.

It is an arithmetic number, because the mean of its divisors is an integer number (10110605100606).

Almost surely, 2^{20221210201211} is an apocalyptic number.

20221210201211 is a deficient number, since it is larger than the sum of its proper divisors (1).

20221210201211 is an equidigital number, since it uses as much as digits as its factorization.

20221210201211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20221210201211 its reverse (11210201212202), we get a palindrome (31431411413413).

The spelling of 20221210201211 in words is "twenty trillion, two hundred twenty-one billion, two hundred ten million, two hundred one thousand, two hundred eleven".