2228695121 has 8 divisors (see below), whose sum is σ = 2435917824. Its totient is φ = 2029930560.

The previous prime is 2228695067. The next prime is 2228695129. The reversal of 2228695121 is 1215968222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2228695121 - 2²⁶ = 2161586257 is a prime.

It is a super-3 number, since 3×2228695121³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2228695129) 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, 2113985 + ... + 2115038.

It is an arithmetic number, because the mean of its divisors is an integer number (304489728).

Almost surely, 2^2228695121 is an apocalyptic number.

It is an amenable number.

2228695121 is a deficient number, since it is larger than the sum of its proper divisors (207222703).

2228695121 is a wasteful number, since it uses less digits than its factorization.

2228695121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4229071.

The product of its digits is 34560, while the sum is 38.

The square root of 2228695121 is about 47209.0576160974. The cubic root of 2228695121 is about 1306.2216792743.

The spelling of 2228695121 in words is "two billion, two hundred twenty-eight million, six hundred ninety-five thousand, one hundred twenty-one".