221210311342 has 32 divisors (see below), whose sum is σ = 337436668800. Its totient is φ = 108745512288.

The previous prime is 221210311337. The next prime is 221210311351. The reversal of 221210311342 is 243113012122.

221210311342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34674709 + ... + 34681087.

It is an arithmetic number, because the mean of its divisors is an integer number (10544895900).

Almost surely, 2^221210311342 is an apocalyptic number.

221210311342 is a deficient number, since it is larger than the sum of its proper divisors (116226357458).

221210311342 is a wasteful number, since it uses less digits than its factorization.

221210311342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7440.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 221210311342 its reverse (243113012122), we get a palindrome (464323323464).

The spelling of 221210311342 in words is "two hundred twenty-one billion, two hundred ten million, three hundred eleven thousand, three hundred forty-two".