21252106362 has 16 divisors (see below), whose sum is σ = 42505650432. Its totient is φ = 7083795840.

The previous prime is 21252106331. The next prime is 21252106363. The reversal of 21252106362 is 26360125212.

It is not an unprimeable number, because it can be changed into a prime (21252106363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285162 + ... + 351882.

It is an arithmetic number, because the mean of its divisors is an integer number (2656603152).

Almost surely, 2^21252106362 is an apocalyptic number.

21252106362 is an abundant number, since it is smaller than the sum of its proper divisors (21253544070).

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

21252106362 is a wasteful number, since it uses less digits than its factorization.

21252106362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119813.

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 21252106362 in words is "twenty-one billion, two hundred fifty-two million, one hundred six thousand, three hundred sixty-two".