12200021243 has 8 divisors (see below), whose sum is σ = 12291422640. Its totient is φ = 12108672000.

The previous prime is 12200021237. The next prime is 12200021257. The reversal of 12200021243 is 34212000221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12200021243 - 2⁶ = 12200021179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12200021233) 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, 545171 + ... + 567107.

It is an arithmetic number, because the mean of its divisors is an integer number (1536427830).

Almost surely, 2^12200021243 is an apocalyptic number.

12200021243 is a deficient number, since it is larger than the sum of its proper divisors (91401397).

12200021243 is a wasteful number, since it uses less digits than its factorization.

12200021243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26077.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 12200021243 its reverse (34212000221), we get a palindrome (46412021464).

The spelling of 12200021243 in words is "twelve billion, two hundred million, twenty-one thousand, two hundred forty-three".