121611061 has 8 divisors (see below), whose sum is σ = 142871904. Its totient is φ = 102051120.

The previous prime is 121611059. The next prime is 121611073. The reversal of 121611061 is 160116121.

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 121611061 - 2¹ = 121611059 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121611011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425071 + ... + 425356.

It is an arithmetic number, because the mean of its divisors is an integer number (17858988).

Almost surely, 2^121611061 is an apocalyptic number.

121611061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121611061 is a deficient number, since it is larger than the sum of its proper divisors (21260843).

121611061 is a wasteful number, since it uses less digits than its factorization.

121611061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850451.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 121611061 is about 11027.7405210678. The cubic root of 121611061 is about 495.4399530391.

Adding to 121611061 its reverse (160116121), we get a palindrome (281727182).

The spelling of 121611061 in words is "one hundred twenty-one million, six hundred eleven thousand, sixty-one".