21133122104434 has 24 divisors (see below), whose sum is σ = 33065849481840. Its totient is φ = 10127530795536.

The previous prime is 21133122104429. The next prime is 21133122104447. The reversal of 21133122104434 is 43440122133112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21133122104396 and 21133122104405.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57416944 + ... + 57783835.

It is an arithmetic number, because the mean of its divisors is an integer number (1377743728410).

Almost surely, 2^{21133122104434} is an apocalyptic number.

21133122104434 is a deficient number, since it is larger than the sum of its proper divisors (11932727377406).

21133122104434 is a wasteful number, since it uses less digits than its factorization.

21133122104434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115200922 (or 115200885 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 21133122104434 its reverse (43440122133112), we get a palindrome (64573244237546).

The spelling of 21133122104434 in words is "twenty-one trillion, one hundred thirty-three billion, one hundred twenty-two million, one hundred four thousand, four hundred thirty-four".