21112234050 has 24 divisors (see below), whose sum is σ = 52358340816. Its totient is φ = 5629929040.

The previous prime is 21112234027. The next prime is 21112234061. The reversal of 21112234050 is 5043221112.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70373964 + ... + 70374263.

It is an arithmetic number, because the mean of its divisors is an integer number (2181597534).

Almost surely, 2^21112234050 is an apocalyptic number.

21112234050 is an abundant number, since it is smaller than the sum of its proper divisors (31246106766).

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

21112234050 is a wasteful number, since it uses less digits than its factorization.

21112234050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140748242 (or 140748237 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 21112234050 its reverse (5043221112), we get a palindrome (26155455162).

The spelling of 21112234050 in words is "twenty-one billion, one hundred twelve million, two hundred thirty-four thousand, fifty".