20021412179 has 2 divisors, whose sum is σ = 20021412180. Its totient is φ = 20021412178.

The previous prime is 20021412157. The next prime is 20021412221. The reversal of 20021412179 is 97121412002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20021412179 - 2¹² = 20021408083 is a prime.

It is not a weakly prime, because it can be changed into another prime (20021412779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010706089 + 10010706090.

It is an arithmetic number, because the mean of its divisors is an integer number (10010706090).

Almost surely, 2^20021412179 is an apocalyptic number.

20021412179 is a deficient number, since it is larger than the sum of its proper divisors (1).

20021412179 is an equidigital number, since it uses as much as digits as its factorization.

20021412179 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 29.

The spelling of 20021412179 in words is "twenty billion, twenty-one million, four hundred twelve thousand, one hundred seventy-nine".