6220121615 has 8 divisors (see below), whose sum is σ = 7665879840. Its totient is φ = 4841608032.

The previous prime is 6220121581. The next prime is 6220121617. The reversal of 6220121615 is 5161210226.

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 6220121615 - 2⁸ = 6220121359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6220121617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16810955 + ... + 16811324.

It is an arithmetic number, because the mean of its divisors is an integer number (958234980).

Almost surely, 2^6220121615 is an apocalyptic number.

6220121615 is a deficient number, since it is larger than the sum of its proper divisors (1445758225).

6220121615 is a wasteful number, since it uses less digits than its factorization.

6220121615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33622321.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 6220121615 is about 78867.7476222061. The cubic root of 6220121615 is about 1839.0757818132.

The spelling of 6220121615 in words is "six billion, two hundred twenty million, one hundred twenty-one thousand, six hundred fifteen".