221413233625342 has 32 divisors (see below), whose sum is σ = 364964169533184. Its totient is φ = 99905849995200.

The previous prime is 221413233625303. The next prime is 221413233625349. The reversal of 221413233625342 is 243526332314122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221413233625349) 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, 163053367 + ... + 164405677.

It is an arithmetic number, because the mean of its divisors is an integer number (11405130297912).

Almost surely, 2^{221413233625342} is an apocalyptic number.

221413233625342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221413233625342 is a deficient number, since it is larger than the sum of its proper divisors (143550935907842).

221413233625342 is a wasteful number, since it uses less digits than its factorization.

221413233625342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1406784.

The product of its digits is 1244160, while the sum is 43.

Adding to 221413233625342 its reverse (243526332314122), we get a palindrome (464939565939464).

The spelling of 221413233625342 in words is "two hundred twenty-one trillion, four hundred thirteen billion, two hundred thirty-three million, six hundred twenty-five thousand, three hundred forty-two".