22121342134 has 16 divisors (see below), whose sum is σ = 33576681600. Its totient is φ = 10929276864.

The previous prime is 22121342119. The next prime is 22121342179. The reversal of 22121342134 is 43124312122.

It is a junction number, because it is equal to n+sod(n) for n = 22121342099 and 22121342108.

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, 239272 + ... + 318580.

It is an arithmetic number, because the mean of its divisors is an integer number (2098542600).

Almost surely, 2^22121342134 is an apocalyptic number.

22121342134 is a deficient number, since it is larger than the sum of its proper divisors (11455339466).

22121342134 is a wasteful number, since it uses less digits than its factorization.

22121342134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80967.

The product of its digits is 2304, while the sum is 25.

Adding to 22121342134 its reverse (43124312122), we get a palindrome (65245654256).

The spelling of 22121342134 in words is "twenty-two billion, one hundred twenty-one million, three hundred forty-two thousand, one hundred thirty-four".