121137121 has 8 divisors (see below), whose sum is σ = 146586240. Its totient is φ = 97723968.

The previous prime is 121137109. The next prime is 121137127. The reversal of 121137121 is 121731121.

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 121137121 - 2⁷ = 121136993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121137127) 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, 508861 + ... + 509098.

It is an arithmetic number, because the mean of its divisors is an integer number (18323280).

Almost surely, 2^121137121 is an apocalyptic number.

It is an amenable number.

121137121 is a deficient number, since it is larger than the sum of its proper divisors (25449119).

121137121 is a wasteful number, since it uses less digits than its factorization.

121137121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017983.

The product of its digits is 84, while the sum is 19.

The square root of 121137121 is about 11006.2310079336. The cubic root of 121137121 is about 494.7955091808.

Adding to 121137121 its reverse (121731121), we get a palindrome (242868242).

The spelling of 121137121 in words is "one hundred twenty-one million, one hundred thirty-seven thousand, one hundred twenty-one".