121154229 has 12 divisors (see below), whose sum is σ = 200000736. Its totient is φ = 69230952.

The previous prime is 121154227. The next prime is 121154233. The reversal of 121154229 is 922451121.

It is not a de Polignac number, because 121154229 - 2¹ = 121154227 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121154227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 961479 + ... + 961604.

It is an arithmetic number, because the mean of its divisors is an integer number (16666728).

Almost surely, 2^121154229 is an apocalyptic number.

It is an amenable number.

121154229 is a deficient number, since it is larger than the sum of its proper divisors (78846507).

121154229 is a wasteful number, since it uses less digits than its factorization.

121154229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1923096 (or 1923093 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 121154229 is about 11007.0081766118. The cubic root of 121154229 is about 494.8188011413.

The spelling of 121154229 in words is "one hundred twenty-one million, one hundred fifty-four thousand, two hundred twenty-nine".