6622201212 has 48 divisors (see below), whose sum is σ = 16862692224. Its totient is φ = 2005992000.

The previous prime is 6622201211. The next prime is 6622201213. The reversal of 6622201212 is 2121022266.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6622201211) and next prime (6622201213).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6622201211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 432162 + ... + 447222.

It is an arithmetic number, because the mean of its divisors is an integer number (351306088).

Almost surely, 2^6622201212 is an apocalyptic number.

It is an amenable number.

6622201212 is an abundant number, since it is smaller than the sum of its proper divisors (10240491012).

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

6622201212 is a wasteful number, since it uses less digits than its factorization.

6622201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18410 (or 18408 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 6622201212 is about 81376.9083462870. The cubic root of 6622201212 is about 1877.8783606757.

Adding to 6622201212 its reverse (2121022266), we get a palindrome (8743223478).

The spelling of 6622201212 in words is "six billion, six hundred twenty-two million, two hundred one thousand, two hundred twelve".