12201051252 has 24 divisors (see below), whose sum is σ = 30659052256. Its totient is φ = 3754169568.

The previous prime is 12201051251. The next prime is 12201051277. The reversal of 12201051252 is 25215010221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201051251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39105778 + ... + 39106089.

Almost surely, 2^12201051252 is an apocalyptic number.

12201051252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12201051252 is an abundant number, since it is smaller than the sum of its proper divisors (18458001004).

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

12201051252 is a wasteful number, since it uses less digits than its factorization.

12201051252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78211887 (or 78211885 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

Adding to 12201051252 its reverse (25215010221), we get a palindrome (37416061473).

The spelling of 12201051252 in words is "twelve billion, two hundred one million, fifty-one thousand, two hundred fifty-two".