21134320424122 has 8 divisors (see below), whose sum is σ = 33566273614836. Its totient is φ = 9945562552512.

The previous prime is 21134320424117. The next prime is 21134320424167. The reversal of 21134320424122 is 22142402343112.

It can be written as a sum of positive squares in 2 ways, for example, as 16866290845881 + 4268029578241 = 4106859^2 + 2065921^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310798829733 + ... + 310798829800.

Almost surely, 2^{21134320424122} is an apocalyptic number.

21134320424122 is a deficient number, since it is larger than the sum of its proper divisors (12431953190714).

21134320424122 is a wasteful number, since it uses less digits than its factorization.

21134320424122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621597659552.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 21134320424122 its reverse (22142402343112), we get a palindrome (43276722767234).

The spelling of 21134320424122 in words is "twenty-one trillion, one hundred thirty-four billion, three hundred twenty million, four hundred twenty-four thousand, one hundred twenty-two".