221001201210019 has 8 divisors (see below), whose sum is σ = 224114579468640. Its totient is φ = 217887841987200.

The previous prime is 221001201210001. The next prime is 221001201210029. The reversal of 221001201210019 is 910012102100122.

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 221001201210019 - 2⁷ = 221001201209891 is a prime.

It is a super-2 number, since 2×221001201210019² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221001201210029) 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, 19488237 + ... + 28666945.

It is an arithmetic number, because the mean of its divisors is an integer number (28014322433580).

Almost surely, 2^{221001201210019} is an apocalyptic number.

221001201210019 is a deficient number, since it is larger than the sum of its proper divisors (3113378258621).

221001201210019 is an equidigital number, since it uses as much as digits as its factorization.

221001201210019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9517901.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 221001201210019 in words is "two hundred twenty-one trillion, one billion, two hundred one million, two hundred ten thousand, nineteen".