222240420221 has 8 divisors (see below), whose sum is σ = 222675452544. Its totient is φ = 221805561600.

The previous prime is 222240420217. The next prime is 222240420223. The reversal of 222240420221 is 122024042222.

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 222240420221 - 2² = 222240420217 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 (222240420223) 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, 2684396 + ... + 2765946.

It is an arithmetic number, because the mean of its divisors is an integer number (27834431568).

Almost surely, 2^222240420221 is an apocalyptic number.

It is an amenable number.

222240420221 is a deficient number, since it is larger than the sum of its proper divisors (435032323).

222240420221 is an equidigital number, since it uses as much as digits as its factorization.

222240420221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86851.

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 222240420221 its reverse (122024042222), we get a palindrome (344264462443).

The spelling of 222240420221 in words is "two hundred twenty-two billion, two hundred forty million, four hundred twenty thousand, two hundred twenty-one".