3100221232661 has 8 divisors (see below), whose sum is σ = 3697158240384. Its totient is φ = 2541796290000.

The previous prime is 3100221232649. The next prime is 3100221232679. The reversal of 3100221232661 is 1662321220013.

It is a happy number.

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 3100221232661 - 2³⁴ = 3083041363477 is a prime.

It is a super-2 number, since 2×3100221232661² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3100221234661) 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, 9628016090 + ... + 9628016411.

It is an arithmetic number, because the mean of its divisors is an integer number (462144780048).

Almost surely, 2^{3100221232661} is an apocalyptic number.

It is an amenable number.

3100221232661 is a deficient number, since it is larger than the sum of its proper divisors (596937007723).

3100221232661 is a wasteful number, since it uses less digits than its factorization.

3100221232661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19256032531.

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 3100221232661 its reverse (1662321220013), we get a palindrome (4762542452674).

The spelling of 3100221232661 in words is "three trillion, one hundred billion, two hundred twenty-one million, two hundred thirty-two thousand, six hundred sixty-one".