12212044250 has 64 divisors (see below), whose sum is σ = 26833068288. Its totient is φ = 4073803200.

The previous prime is 12212044199. The next prime is 12212044277. The reversal of 12212044250 is 5244021221.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29552 + ... + 159051.

It is an arithmetic number, because the mean of its divisors is an integer number (419266692).

Almost surely, 2^12212044250 is an apocalyptic number.

12212044250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12212044250 is an abundant number, since it is smaller than the sum of its proper divisors (14621024038).

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

12212044250 is a wasteful number, since it uses less digits than its factorization.

12212044250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188664 (or 188654 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

Adding to 12212044250 its reverse (5244021221), we get a palindrome (17456065471).

The spelling of 12212044250 in words is "twelve billion, two hundred twelve million, forty-four thousand, two hundred fifty".