20212365371389 has 2 divisors, whose sum is σ = 20212365371390. Its totient is φ = 20212365371388.

The previous prime is 20212365371377. The next prime is 20212365371413. The reversal of 20212365371389 is 98317356321202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17029859225625 + 3182506145764 = 4126725^2 + 1783958^2 .

It is a cyclic number.

It is not a de Polignac number, because 20212365371389 - 2³⁹ = 19662609557501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20212365372389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10106182685694 + 10106182685695.

It is an arithmetic number, because the mean of its divisors is an integer number (10106182685695).

Almost surely, 2^{20212365371389} is an apocalyptic number.

It is an amenable number.

20212365371389 is a deficient number, since it is larger than the sum of its proper divisors (1).

20212365371389 is an equidigital number, since it uses as much as digits as its factorization.

20212365371389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3265920, while the sum is 52.

The spelling of 20212365371389 in words is "twenty trillion, two hundred twelve billion, three hundred sixty-five million, three hundred seventy-one thousand, three hundred eighty-nine".