222213201001221 has 8 divisors (see below), whose sum is σ = 296515921070080. Its totient is φ = 148026307466592.

The previous prime is 222213201001213. The next prime is 222213201001271. The reversal of 222213201001221 is 122100102312222.

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

It is not a de Polignac number, because 222213201001221 - 2³ = 222213201001213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222213201001271) 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, 28956629080 + ... + 28956636753.

It is an arithmetic number, because the mean of its divisors is an integer number (37064490133760).

Almost surely, 2^{222213201001221} is an apocalyptic number.

It is an amenable number.

222213201001221 is a deficient number, since it is larger than the sum of its proper divisors (74302720068859).

222213201001221 is a wasteful number, since it uses less digits than its factorization.

222213201001221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57913267115.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 222213201001221 its reverse (122100102312222), we get a palindrome (344313303313443).

The spelling of 222213201001221 in words is "two hundred twenty-two trillion, two hundred thirteen billion, two hundred one million, one thousand, two hundred twenty-one".