6601070121 has 4 divisors (see below), whose sum is σ = 8801426832. Its totient is φ = 4400713412.

The previous prime is 6601070101. The next prime is 6601070123. The reversal of 6601070121 is 1210701066.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6601070121 - 2⁶ = 6601070057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6601070091 and 6601070100.

It is not an unprimeable number, because it can be changed into a prime (6601070123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1100178351 + ... + 1100178356.

It is an arithmetic number, because the mean of its divisors is an integer number (2200356708).

Almost surely, 2^6601070121 is an apocalyptic number.

It is an amenable number.

6601070121 is a deficient number, since it is larger than the sum of its proper divisors (2200356711).

6601070121 is a wasteful number, since it uses less digits than its factorization.

6601070121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2200356710.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 6601070121 is about 81246.9699188837. The cubic root of 6601070121 is about 1875.8788291229.

Adding to 6601070121 its reverse (1210701066), we get a palindrome (7811771187).

The spelling of 6601070121 in words is "six billion, six hundred one million, seventy thousand, one hundred twenty-one".