11212200646 has 8 divisors (see below), whose sum is σ = 16939296360. Its totient is φ = 5565768528.

The previous prime is 11212200617. The next prime is 11212200647. The reversal of 11212200646 is 64600221211.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 11212200646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212200647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20165551 + ... + 20166106.

It is an arithmetic number, because the mean of its divisors is an integer number (2117412045).

Almost surely, 2^11212200646 is an apocalyptic number.

11212200646 is a deficient number, since it is larger than the sum of its proper divisors (5727095714).

11212200646 is a wasteful number, since it uses less digits than its factorization.

11212200646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40331798.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 11212200646 its reverse (64600221211), we get a palindrome (75812421857).

The spelling of 11212200646 in words is "eleven billion, two hundred twelve million, two hundred thousand, six hundred forty-six".