222001010000221 has 8 divisors (see below), whose sum is σ = 224495737583040. Its totient is φ = 219506289844512.

The previous prime is 222001010000201. The next prime is 222001010000249. The reversal of 222001010000221 is 122000010100222.

It is a happy number.

222001010000221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 222001010000221 - 2³³ = 221992420065629 is a prime.

It is a super-2 number, since 2×222001010000221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222001010000201) 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, 76946496 + ... + 79779478.

It is an arithmetic number, because the mean of its divisors is an integer number (28061967197880).

Almost surely, 2^{222001010000221} is an apocalyptic number.

It is an amenable number.

222001010000221 is a deficient number, since it is larger than the sum of its proper divisors (2494727582819).

222001010000221 is an equidigital number, since it uses as much as digits as its factorization.

222001010000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3713555.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 222001010000221 its reverse (122000010100222), we get a palindrome (344001020100443).

The spelling of 222001010000221 in words is "two hundred twenty-two trillion, one billion, ten million, two hundred twenty-one", and thus it is an aban number.