21222231230334 has 16 divisors (see below), whose sum is σ = 42666684779520. Its totient is φ = 7037040023640.

The previous prime is 21222231230309. The next prime is 21222231230357. The reversal of 21222231230334 is 43303213222212.

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, 9259262044 + ... + 9259264335.

It is an arithmetic number, because the mean of its divisors is an integer number (2666667798720).

Almost surely, 2^{21222231230334} is an apocalyptic number.

21222231230334 is an abundant number, since it is smaller than the sum of its proper divisors (21444453549186).

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

21222231230334 is a wasteful number, since it uses less digits than its factorization.

21222231230334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18518526575.

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 21222231230334 its reverse (43303213222212), we get a palindrome (64525444452546).

The spelling of 21222231230334 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred thirty-one million, two hundred thirty thousand, three hundred thirty-four".