22131001033 has 4 divisors (see below), whose sum is σ = 22670781588. Its totient is φ = 21591220480.

The previous prime is 22131001003. The next prime is 22131001073. The reversal of 22131001033 is 33010013122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33010013122 = 2 ⋅16505006561.

It can be written as a sum of positive squares in 2 ways, for example, as 2952074889 + 19178926144 = 54333^2 + 138488^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22131001033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22131000998 and 22131001016.

It is not an unprimeable number, because it can be changed into a prime (22131001003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269890216 + ... + 269890297.

It is an arithmetic number, because the mean of its divisors is an integer number (5667695397).

Almost surely, 2^22131001033 is an apocalyptic number.

It is an amenable number.

22131001033 is a deficient number, since it is larger than the sum of its proper divisors (539780555).

22131001033 is an equidigital number, since it uses as much as digits as its factorization.

22131001033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539780554.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 22131001033 its reverse (33010013122), we get a palindrome (55141014155).

The spelling of 22131001033 in words is "twenty-two billion, one hundred thirty-one million, one thousand, thirty-three".