121105567 has 8 divisors (see below), whose sum is σ = 133478352. Its totient is φ = 108960000.

The previous prime is 121105547. The next prime is 121105571. The reversal of 121105567 is 765501121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121105567 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 (121105547) 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, 55684 + ... + 57817.

It is an arithmetic number, because the mean of its divisors is an integer number (16684794).

Almost surely, 2^121105567 is an apocalyptic number.

121105567 is a deficient number, since it is larger than the sum of its proper divisors (12372785).

121105567 is a wasteful number, since it uses less digits than its factorization.

121105567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113609.

The product of its (nonzero) digits is 2100, while the sum is 28.

The square root of 121105567 is about 11004.7974538380. The cubic root of 121105567 is about 494.7525437292.

Adding to 121105567 its reverse (765501121), we get a palindrome (886606688).

The spelling of 121105567 in words is "one hundred twenty-one million, one hundred five thousand, five hundred sixty-seven".