22134422142221 has 16 divisors (see below), whose sum is σ = 23313229152768. Its totient is φ = 20985834542400.

The previous prime is 22134422142197. The next prime is 22134422142253. The reversal of 22134422142221 is 12224122443122.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22134422142221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22134422142821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8612846 + ... + 10883471.

It is an arithmetic number, because the mean of its divisors is an integer number (1457076822048).

Almost surely, 2^{22134422142221} is an apocalyptic number.

It is an amenable number.

22134422142221 is a deficient number, since it is larger than the sum of its proper divisors (1178807010547).

22134422142221 is a wasteful number, since it uses less digits than its factorization.

22134422142221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19497092.

The product of its digits is 24576, while the sum is 32.

Adding to 22134422142221 its reverse (12224122443122), we get a palindrome (34358544585343).

The spelling of 22134422142221 in words is "twenty-two trillion, one hundred thirty-four billion, four hundred twenty-two million, one hundred forty-two thousand, two hundred twenty-one".