20212022030509 has 2 divisors, whose sum is σ = 20212022030510. Its totient is φ = 20212022030508.

The previous prime is 20212022030467. The next prime is 20212022030531. The reversal of 20212022030509 is 90503022021202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20212019825284 + 2205225 = 4495778^2 + 1485^2 .

It is a cyclic number.

It is not a de Polignac number, because 20212022030509 - 2¹¹ = 20212022028461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20212022030549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10106011015254 + 10106011015255.

It is an arithmetic number, because the mean of its divisors is an integer number (10106011015255).

Almost surely, 2^{20212022030509} is an apocalyptic number.

It is an amenable number.

20212022030509 is a deficient number, since it is larger than the sum of its proper divisors (1).

20212022030509 is an equidigital number, since it uses as much as digits as its factorization.

20212022030509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 20212022030509 in words is "twenty trillion, two hundred twelve billion, twenty-two million, thirty thousand, five hundred nine".