121051641 has 16 divisors (see below), whose sum is σ = 170147840. Its totient is φ = 76340880.

The previous prime is 121051627. The next prime is 121051643. The reversal of 121051641 is 146150121.

It is not a de Polignac number, because 121051641 - 2⁹ = 121051129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121051643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55416 + ... + 57558.

It is an arithmetic number, because the mean of its divisors is an integer number (10634240).

Almost surely, 2^121051641 is an apocalyptic number.

It is an amenable number.

121051641 is a deficient number, since it is larger than the sum of its proper divisors (49096199).

121051641 is a wasteful number, since it uses less digits than its factorization.

121051641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3156.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 121051641 is about 11002.3470677851. The cubic root of 121051641 is about 494.6790982019.

The spelling of 121051641 in words is "one hundred twenty-one million, fifty-one thousand, six hundred forty-one".