21122330122534 has 16 divisors (see below), whose sum is σ = 31764768939072. Its totient is φ = 10534092262848.

The previous prime is 21122330122529. The next prime is 21122330122559. The reversal of 21122330122534 is 43522103322112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21122330122496 and 21122330122505.

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, 2321869 + ... + 6901864.

It is an arithmetic number, because the mean of its divisors is an integer number (1985298058692).

Almost surely, 2^{21122330122534} is an apocalyptic number.

21122330122534 is a deficient number, since it is larger than the sum of its proper divisors (10642438816538).

21122330122534 is a wasteful number, since it uses less digits than its factorization.

21122330122534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9226671.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 21122330122534 its reverse (43522103322112), we get a palindrome (64644433444646).

The spelling of 21122330122534 in words is "twenty-one trillion, one hundred twenty-two billion, three hundred thirty million, one hundred twenty-two thousand, five hundred thirty-four".