221422115401533 has 12 divisors (see below), whose sum is σ = 319844676452028. Its totient is φ = 147608867301120.

The previous prime is 221422115401457. The next prime is 221422115401601. The reversal of 221422115401533 is 335104511224122.

221422115401533 is a `hidden beast` number, since 2 + 2 + 1 + 4 + 2 + 2 + 115 + 4 + 0 + 1 + 533 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 99189588603609 + 122232526797924 = 9959397^2 + 11055882^2 .

It is not a de Polignac number, because 221422115401533 - 2⁹ = 221422115401021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221422115406533) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 489453010 + ... + 489905187.

It is an arithmetic number, because the mean of its divisors is an integer number (26653723037669).

Almost surely, 2^{221422115401533} is an apocalyptic number.

It is an amenable number.

221422115401533 is a deficient number, since it is larger than the sum of its proper divisors (98422561050495).

221422115401533 is a wasteful number, since it uses less digits than its factorization.

221422115401533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979383324 (or 979383321 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

Adding to 221422115401533 its reverse (335104511224122), we get a palindrome (556526626625655).

The spelling of 221422115401533 in words is "two hundred twenty-one trillion, four hundred twenty-two billion, one hundred fifteen million, four hundred one thousand, five hundred thirty-three".