221000001019 has 8 divisors (see below), whose sum is σ = 265864663040. Its totient is φ = 179458647336.

The previous prime is 221000000987. The next prime is 221000001059. The reversal of 221000001019 is 910100000122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221000001019 - 2⁵ = 221000000987 is a prime.

It is a super-2 number, since 2×221000001019² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221000000993 and 221000001011.

It is not an unprimeable number, because it can be changed into a prime (221000001059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 830826939 + ... + 830827204.

It is an arithmetic number, because the mean of its divisors is an integer number (33233082880).

Almost surely, 2^221000001019 is an apocalyptic number.

221000001019 is a deficient number, since it is larger than the sum of its proper divisors (44864662021).

221000001019 is a wasteful number, since it uses less digits than its factorization.

221000001019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661654169.

The product of its (nonzero) digits is 36, while the sum is 16.

The spelling of 221000001019 in words is "two hundred twenty-one billion, one thousand, nineteen".