221431347420462 has 24 divisors (see below), whose sum is σ = 480046692237840. Its totient is φ = 73767561012960.

The previous prime is 221431347420403. The next prime is 221431347420467. The reversal of 221431347420462 is 264024743134122.

221431347420462 is a `hidden beast` number, since 2 + 2 + 1 + 4 + 313 + 4 + 74 + 204 + 62 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221431347420467) 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, 3573978762 + ... + 3574040717.

It is an arithmetic number, because the mean of its divisors is an integer number (20001945509910).

Almost surely, 2^{221431347420462} is an apocalyptic number.

221431347420462 is an abundant number, since it is smaller than the sum of its proper divisors (258615344817378).

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

221431347420462 is a wasteful number, since it uses less digits than its factorization.

221431347420462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7148021208 (or 7148021205 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 45.

The spelling of 221431347420462 in words is "two hundred twenty-one trillion, four hundred thirty-one billion, three hundred forty-seven million, four hundred twenty thousand, four hundred sixty-two".