2227356906281 has 8 divisors (see below), whose sum is σ = 2414790659400. Its totient is φ = 2042222954112.

The previous prime is 2227356906259. The next prime is 2227356906311. The reversal of 2227356906281 is 1826096537222.

It can be written as a sum of positive squares in 4 ways, for example, as 232243031056 + 1995113875225 = 481916^2 + 1412485^2 .

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 2227356906281 - 2¹⁴ = 2227356889897 is a prime.

It is a super-2 number, since 2×2227356906281² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2227356906221) 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 7 ways as a sum of consecutive naturals, for example, 574948220 + ... + 574952093.

It is an arithmetic number, because the mean of its divisors is an integer number (301848832425).

Almost surely, 2^{2227356906281} is an apocalyptic number.

It is an amenable number.

2227356906281 is a deficient number, since it is larger than the sum of its proper divisors (187433753119).

2227356906281 is a wasteful number, since it uses less digits than its factorization.

2227356906281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149900475.

The product of its (nonzero) digits is 4354560, while the sum is 53.

The spelling of 2227356906281 in words is "two trillion, two hundred twenty-seven billion, three hundred fifty-six million, nine hundred six thousand, two hundred eighty-one".