221222414401 has 8 divisors (see below), whose sum is σ = 227259345344. Its totient is φ = 215188533360.

The previous prime is 221222414351. The next prime is 221222414429. The reversal of 221222414401 is 104414222122.

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 221222414401 - 2¹⁷ = 221222283329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221222414461) 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, 615045 + ... + 905938.

It is an arithmetic number, because the mean of its divisors is an integer number (28407418168).

Almost surely, 2^221222414401 is an apocalyptic number.

It is an amenable number.

221222414401 is a deficient number, since it is larger than the sum of its proper divisors (6036930943).

221222414401 is a wasteful number, since it uses less digits than its factorization.

221222414401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1524951.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 221222414401 its reverse (104414222122), we get a palindrome (325636636523).

The spelling of 221222414401 in words is "two hundred twenty-one billion, two hundred twenty-two million, four hundred fourteen thousand, four hundred one".