2150550121 has 8 divisors (see below), whose sum is σ = 2201971104. Its totient is φ = 2099697600.

The previous prime is 2150550119. The next prime is 2150550137. The reversal of 2150550121 is 1210550512.

It is a happy number.

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 2150550121 - 2¹ = 2150550119 is a prime.

It is a super-2 number, since 2×2150550121² = 9249731645866229282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2150550092 and 2150550101.

It is not an unprimeable number, because it can be changed into a prime (2150550161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134455 + ... + 149596.

It is an arithmetic number, because the mean of its divisors is an integer number (275246388).

Almost surely, 2^2150550121 is an apocalyptic number.

It is an amenable number.

2150550121 is a deficient number, since it is larger than the sum of its proper divisors (51420983).

2150550121 is a wasteful number, since it uses less digits than its factorization.

2150550121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284231.

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 2150550121 is about 46374.0242053674. The cubic root of 2150550121 is about 1290.7729520237.

The spelling of 2150550121 in words is "two billion, one hundred fifty million, five hundred fifty thousand, one hundred twenty-one".