20212202009959 has 2 divisors, whose sum is σ = 20212202009960. Its totient is φ = 20212202009958.

The previous prime is 20212202009957. The next prime is 20212202010059. The reversal of 20212202009959 is 95990020221202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20212202009959 - 2¹ = 20212202009957 is a prime.

It is a super-2 number, since 2×20212202009959² (a number of 27 digits) contains 22 as substring.

Together with 20212202009957, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20212202009957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10106101004979 + 10106101004980.

It is an arithmetic number, because the mean of its divisors is an integer number (10106101004980).

Almost surely, 2^{20212202009959} is an apocalyptic number.

20212202009959 is a deficient number, since it is larger than the sum of its proper divisors (1).

20212202009959 is an equidigital number, since it uses as much as digits as its factorization.

20212202009959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 43.

The spelling of 20212202009959 in words is "twenty trillion, two hundred twelve billion, two hundred two million, nine thousand, nine hundred fifty-nine".