221422047311401 has 16 divisors (see below), whose sum is σ = 221823311346000. Its totient is φ = 221021144098560.

The previous prime is 221422047311351. The next prime is 221422047311461. The reversal of 221422047311401 is 104113740224122.

It can be written as a sum of positive squares in 8 ways, for example, as 177635717280025 + 43786330031376 = 13328005^2 + 6617124^2 .

It is a cyclic number.

It is not a de Polignac number, because 221422047311401 - 2⁷ = 221422047311273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221422047311461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14059427475 + ... + 14059443223.

It is an arithmetic number, because the mean of its divisors is an integer number (13863956959125).

Almost surely, 2^{221422047311401} is an apocalyptic number.

It is an amenable number.

221422047311401 is a deficient number, since it is larger than the sum of its proper divisors (401264034599).

221422047311401 is a wasteful number, since it uses less digits than its factorization.

221422047311401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25644.

The product of its (nonzero) digits is 21504, while the sum is 34.

Adding to 221422047311401 its reverse (104113740224122), we get a palindrome (325535787535523).

The spelling of 221422047311401 in words is "two hundred twenty-one trillion, four hundred twenty-two billion, forty-seven million, three hundred eleven thousand, four hundred one".