20212022101009 has 2 divisors, whose sum is σ = 20212022101010. Its totient is φ = 20212022101008.

The previous prime is 20212022100997. The next prime is 20212022101067. The reversal of 20212022101009 is 90010122021202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20119961438784 + 92060662225 = 4485528^2 + 303415^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20212022101009 is a prime.

It is not a weakly prime, because it can be changed into another prime (20212022701009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10106011050504 + 10106011050505.

It is an arithmetic number, because the mean of its divisors is an integer number (10106011050505).

Almost surely, 2^{20212022101009} is an apocalyptic number.

It is an amenable number.

20212022101009 is a deficient number, since it is larger than the sum of its proper divisors (1).

20212022101009 is an equidigital number, since it uses as much as digits as its factorization.

20212022101009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 20212022101009 in words is "twenty trillion, two hundred twelve billion, twenty-two million, one hundred one thousand, nine".