21222110013342 has 32 divisors (see below), whose sum is σ = 48508368921600. Its totient is φ = 6063373892448.

The previous prime is 21222110013331. The next prime is 21222110013359. The reversal of 21222110013342 is 24331001122212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 565417 + ... + 6539412.

It is an arithmetic number, because the mean of its divisors is an integer number (1515886528800).

Almost surely, 2^{21222110013342} is an apocalyptic number.

21222110013342 is an abundant number, since it is smaller than the sum of its proper divisors (27286258908258).

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

21222110013342 is a wasteful number, since it uses less digits than its factorization.

21222110013342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7175960.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 21222110013342 its reverse (24331001122212), we get a palindrome (45553111135554).

The spelling of 21222110013342 in words is "twenty-one trillion, two hundred twenty-two billion, one hundred ten million, thirteen thousand, three hundred forty-two".