2231000001 has 6 divisors (see below), whose sum is σ = 3222555570. Its totient is φ = 1487333328.

The previous prime is 2230999999. The next prime is 2231000041. The reversal of 2231000001 is 1000001322.

It is a happy number.

2231000001 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2081549376 + 149450625 = 45624^2 + 12225^2 .

It is not a de Polignac number, because 2231000001 - 2¹ = 2230999999 is a prime.

It is a super-3 number, since 3×2231000001³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 247888889 = 2231000001 / (2 + 2 + 3 + 1 + 0 + 0 + 0 + 0 + 0 + 1).

It is not an unprimeable number, because it can be changed into a prime (2231000041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 123944436 + ... + 123944453.

It is an arithmetic number, because the mean of its divisors is an integer number (537092595).

Almost surely, 2^2231000001 is an apocalyptic number.

It is an amenable number.

2231000001 is a deficient number, since it is larger than the sum of its proper divisors (991555569).

2231000001 is a wasteful number, since it uses less digits than its factorization.

2231000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247888895 (or 247888892 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 2231000001 is about 47233.4627250639. The cubic root of 2231000001 is about 1306.6718151594.

Adding to 2231000001 its reverse (1000001322), we get a palindrome (3231001323).

The spelling of 2231000001 in words is "two billion, two hundred thirty-one million, one", and thus it is an aban number.