221222412202001 has 8 divisors (see below), whose sum is σ = 252828637361664. Its totient is φ = 189616942896480.

The previous prime is 221222412201949. The next prime is 221222412202067. The reversal of 221222412202001 is 100202214222122.

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 221222412202001 - 2²² = 221222408007697 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (221222415202001) 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, 188336225 + ... + 189507198.

It is an arithmetic number, because the mean of its divisors is an integer number (31603579670208).

Almost surely, 2^{221222412202001} is an apocalyptic number.

It is an amenable number.

221222412202001 is a deficient number, since it is larger than the sum of its proper divisors (31606225159663).

221222412202001 is an equidigital number, since it uses as much as digits as its factorization.

221222412202001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377927071.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 221222412202001 its reverse (100202214222122), we get a palindrome (321424626424123).

The spelling of 221222412202001 in words is "two hundred twenty-one trillion, two hundred twenty-two billion, four hundred twelve million, two hundred two thousand, one".