6221045412 has 18 divisors (see below), whose sum is σ = 15725420438. Its totient is φ = 2073681792.

The previous prime is 6221045353. The next prime is 6221045437. The reversal of 6221045412 is 2145401226.

It can be written as a sum of positive squares in only one way, i.e., 3983376996 + 2237668416 = 63114^2 + 47304^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 86403373 + ... + 86403444.

Almost surely, 2^6221045412 is an apocalyptic number.

It is an amenable number.

6221045412 is an abundant number, since it is smaller than the sum of its proper divisors (9504375026).

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

6221045412 is a wasteful number, since it uses less digits than its factorization.

6221045412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172806827 (or 172806822 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 6221045412 is about 78873.6040256815. The cubic root of 6221045412 is about 1839.1668222941.

Adding to 6221045412 its reverse (2145401226), we get a palindrome (8366446638).

The spelling of 6221045412 in words is "six billion, two hundred twenty-one million, forty-five thousand, four hundred twelve".