21214052150634 has 96 divisors (see below), whose sum is σ = 52587569983104. Its totient is φ = 6054522664320.

The previous prime is 21214052150581. The next prime is 21214052150647. The reversal of 21214052150634 is 43605125041212.

21214052150634 is a `hidden beast` number, since 2 + 1 + 2 + 1 + 4 + 0 + 5 + 2 + 15 + 0 + 634 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 447709624 + ... + 447757004.

It is an arithmetic number, because the mean of its divisors is an integer number (547787187324).

Almost surely, 2^{21214052150634} is an apocalyptic number.

21214052150634 is an abundant number, since it is smaller than the sum of its proper divisors (31373517832470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21214052150634 is a wasteful number, since it uses less digits than its factorization.

21214052150634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51212 (or 51209 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

Adding to 21214052150634 its reverse (43605125041212), we get a palindrome (64819177191846).

The spelling of 21214052150634 in words is "twenty-one trillion, two hundred fourteen billion, fifty-two million, one hundred fifty thousand, six hundred thirty-four".