121120566 has 16 divisors (see below), whose sum is σ = 276847104. Its totient is φ = 34605864.

The previous prime is 121120561. The next prime is 121120579. The reversal of 121120566 is 665021121.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121120561) 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, 1441870 + ... + 1441953.

It is an arithmetic number, because the mean of its divisors is an integer number (17302944).

Almost surely, 2^121120566 is an apocalyptic number.

121120566 is an abundant number, since it is smaller than the sum of its proper divisors (155726538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121120566 is a wasteful number, since it uses less digits than its factorization.

121120566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2883835.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 121120566 is about 11005.4789082529. The cubic root of 121120566 is about 494.7729680231.

Adding to 121120566 its reverse (665021121), we get a palindrome (786141687).

The spelling of 121120566 in words is "one hundred twenty-one million, one hundred twenty thousand, five hundred sixty-six".