6612310221 has 32 divisors (see below), whose sum is σ = 9671574528. Its totient is φ = 3985175040.

The previous prime is 6612310217. The next prime is 6612310223. The reversal of 6612310221 is 1220132166.

It is not a de Polignac number, because 6612310221 - 2² = 6612310217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6612310191 and 6612310200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6612310223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6837480 + ... + 6838446.

It is an arithmetic number, because the mean of its divisors is an integer number (302236704).

Almost surely, 2^6612310221 is an apocalyptic number.

It is an amenable number.

6612310221 is a deficient number, since it is larger than the sum of its proper divisors (3059264307).

6612310221 is a wasteful number, since it uses less digits than its factorization.

6612310221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1921.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 6612310221 is about 81316.1129235775. The cubic root of 6612310221 is about 1876.9429550338.

Adding to 6612310221 its reverse (1220132166), we get a palindrome (7832442387).

The spelling of 6612310221 in words is "six billion, six hundred twelve million, three hundred ten thousand, two hundred twenty-one".