20221000212089 has 2 divisors, whose sum is σ = 20221000212090. Its totient is φ = 20221000212088.

The previous prime is 20221000212037. The next prime is 20221000212131. The reversal of 20221000212089 is 98021200012202.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15825017056489 + 4395983155600 = 3978067^2 + 2096660^2 .

It is a cyclic number.

It is not a de Polignac number, because 20221000212089 - 2⁴⁴ = 2628814167673 is a prime.

It is not a weakly prime, because it can be changed into another prime (20221000211089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110500106044 + 10110500106045.

It is an arithmetic number, because the mean of its divisors is an integer number (10110500106045).

Almost surely, 2^{20221000212089} is an apocalyptic number.

It is an amenable number.

20221000212089 is a deficient number, since it is larger than the sum of its proper divisors (1).

20221000212089 is an equidigital number, since it uses as much as digits as its factorization.

20221000212089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 29.

The spelling of 20221000212089 in words is "twenty trillion, two hundred twenty-one billion, two hundred twelve thousand, eighty-nine".