8712201281 has 16 divisors (see below), whose sum is σ = 10298311680. Its totient is φ = 7212421440.

The previous prime is 8712201167. The next prime is 8712201287. The reversal of 8712201281 is 1821022178.

It is a happy number.

It is not a de Polignac number, because 8712201281 - 2³⁰ = 7638459457 is a prime.

It is a super-2 number, since 2×8712201281² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8712201287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71015 + ... + 149891.

It is an arithmetic number, because the mean of its divisors is an integer number (643644480).

Almost surely, 2^8712201281 is an apocalyptic number.

It is an amenable number.

8712201281 is a deficient number, since it is larger than the sum of its proper divisors (1586110399).

8712201281 is a wasteful number, since it uses less digits than its factorization.

8712201281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79424.

The product of its (nonzero) digits is 3584, while the sum is 32.

The square root of 8712201281 is about 93339.1733464573. The cubic root of 8712201281 is about 2057.6711421051.

The spelling of 8712201281 in words is "eight billion, seven hundred twelve million, two hundred one thousand, two hundred eighty-one".