221000201012179 has 2 divisors, whose sum is σ = 221000201012180. Its totient is φ = 221000201012178.

The previous prime is 221000201012081. The next prime is 221000201012203. The reversal of 221000201012179 is 971210102000122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221000201012179 - 2¹³ = 221000201003987 is a prime.

It is a super-2 number, since 2×221000201012179² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (221000201012779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110500100506089 + 110500100506090.

It is an arithmetic number, because the mean of its divisors is an integer number (110500100506090).

Almost surely, 2^{221000201012179} is an apocalyptic number.

221000201012179 is a deficient number, since it is larger than the sum of its proper divisors (1).

221000201012179 is an equidigital number, since it uses as much as digits as its factorization.

221000201012179 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 28.

The spelling of 221000201012179 in words is "two hundred twenty-one trillion, two hundred one million, twelve thousand, one hundred seventy-nine".