21252335214 has 32 divisors (see below), whose sum is σ = 46751961600. Its totient is φ = 6440099160.

The previous prime is 21252335207. The next prime is 21252335227. The reversal of 21252335214 is 41253325212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1322614 + ... + 1338585.

It is an arithmetic number, because the mean of its divisors is an integer number (1460998800).

Almost surely, 2^21252335214 is an apocalyptic number.

21252335214 is an abundant number, since it is smaller than the sum of its proper divisors (25499626386).

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

21252335214 is a wasteful number, since it uses less digits than its factorization.

21252335214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2661237 (or 2661215 counting only the distinct ones).

The product of its digits is 14400, while the sum is 30.

The spelling of 21252335214 in words is "twenty-one billion, two hundred fifty-two million, three hundred thirty-five thousand, two hundred fourteen".