221431234022334 has 48 divisors (see below), whose sum is σ = 572407271629200. Its totient is φ = 63266066862768.

The previous prime is 221431234022309. The next prime is 221431234022413. The reversal of 221431234022334 is 433220432134122.

221431234022334 is a `hidden beast` number, since 2 + 2 + 1 + 4 + 3 + 12 + 3 + 402 + 233 + 4 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41842634169 + ... + 41842639460.

It is an arithmetic number, because the mean of its divisors is an integer number (11925151492275).

Almost surely, 2^{221431234022334} is an apocalyptic number.

221431234022334 is an abundant number, since it is smaller than the sum of its proper divisors (350976037606866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221431234022334 is a wasteful number, since it uses less digits than its factorization.

221431234022334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83685273654 (or 83685273641 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 36.

Adding to 221431234022334 its reverse (433220432134122), we get a palindrome (654651666156456).

The spelling of 221431234022334 in words is "two hundred twenty-one trillion, four hundred thirty-one billion, two hundred thirty-four million, twenty-two thousand, three hundred thirty-four".