2236254511081 has 4 divisors (see below), whose sum is σ = 2237997501072. Its totient is φ = 2234511521092.

The previous prime is 2236254511063. The next prime is 2236254511111. The reversal of 2236254511081 is 1801154526322.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2236254511081 - 2¹⁵ = 2236254478313 is a prime.

It is a super-3 number, since 3×2236254511081³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2236254511031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 871493071 + ... + 871495636.

It is an arithmetic number, because the mean of its divisors is an integer number (559499375268).

Almost surely, 2^{2236254511081} is an apocalyptic number.

It is an amenable number.

2236254511081 is a deficient number, since it is larger than the sum of its proper divisors (1742989991).

2236254511081 is a wasteful number, since it uses less digits than its factorization.

2236254511081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1742989990.

The product of its (nonzero) digits is 115200, while the sum is 40.

The spelling of 2236254511081 in words is "two trillion, two hundred thirty-six billion, two hundred fifty-four million, five hundred eleven thousand, eighty-one".