221434322102 has 16 divisors (see below), whose sum is σ = 387348669600. Its totient is φ = 94900423464.

The previous prime is 221434322093. The next prime is 221434322189. The reversal of 221434322102 is 201223434122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161394593 + ... + 161395964.

It is an arithmetic number, because the mean of its divisors is an integer number (24209291850).

Almost surely, 2^221434322102 is an apocalyptic number.

221434322102 is a deficient number, since it is larger than the sum of its proper divisors (165914347498).

221434322102 is an equidigital number, since it uses as much as digits as its factorization.

221434322102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322790580 (or 322790566 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 221434322102 its reverse (201223434122), we get a palindrome (422657756224).

The spelling of 221434322102 in words is "two hundred twenty-one billion, four hundred thirty-four million, three hundred twenty-two thousand, one hundred two".