42212061719 has 2 divisors, whose sum is σ = 42212061720. Its totient is φ = 42212061718.

The previous prime is 42212061709. The next prime is 42212061739. The reversal of 42212061719 is 91716021224.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42212061719 is a prime.

It is a super-2 number, since 2×42212061719² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42212061709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21106030859 + 21106030860.

It is an arithmetic number, because the mean of its divisors is an integer number (21106030860).

Almost surely, 2^42212061719 is an apocalyptic number.

42212061719 is a deficient number, since it is larger than the sum of its proper divisors (1).

42212061719 is an equidigital number, since it uses as much as digits as its factorization.

42212061719 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The spelling of 42212061719 in words is "forty-two billion, two hundred twelve million, sixty-one thousand, seven hundred nineteen".