121277229 has 16 divisors (see below), whose sum is σ = 169084800. Its totient is φ = 77175296.

The previous prime is 121277227. The next prime is 121277251. The reversal of 121277229 is 922772121.

It is a cyclic number.

It is not a de Polignac number, because 121277229 - 2¹ = 121277227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121277229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121277227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37717 + ... + 40805.

It is an arithmetic number, because the mean of its divisors is an integer number (10567800).

Almost surely, 2^121277229 is an apocalyptic number.

It is an amenable number.

121277229 is a deficient number, since it is larger than the sum of its proper divisors (47807571).

121277229 is a wasteful number, since it uses less digits than its factorization.

121277229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3684.

The product of its digits is 7056, while the sum is 33.

The square root of 121277229 is about 11012.5941085650. The cubic root of 121277229 is about 494.9861969419.

The spelling of 121277229 in words is "one hundred twenty-one million, two hundred seventy-seven thousand, two hundred twenty-nine".