20020210019947 has 2 divisors, whose sum is σ = 20020210019948. Its totient is φ = 20020210019946.

The previous prime is 20020210019893. The next prime is 20020210019959. The reversal of 20020210019947 is 74991001202002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20020210019947 - 2²⁷ = 20020075802219 is a prime.

It is not a weakly prime, because it can be changed into another prime (20020210019987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010105009973 + 10010105009974.

It is an arithmetic number, because the mean of its divisors is an integer number (10010105009974).

Almost surely, 2^{20020210019947} is an apocalyptic number.

20020210019947 is a deficient number, since it is larger than the sum of its proper divisors (1).

20020210019947 is an equidigital number, since it uses as much as digits as its factorization.

20020210019947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 37.

The spelling of 20020210019947 in words is "twenty trillion, twenty billion, two hundred ten million, nineteen thousand, nine hundred forty-seven".