22202233121 has 16 divisors (see below), whose sum is σ = 24118991568. Its totient is φ = 20354918400.

The previous prime is 22202233117. The next prime is 22202233159. The reversal of 22202233121 is 12133220222.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 6567481600 + 15634751521 = 81040^2 + 125039^2 .

It is a cyclic number.

It is not a de Polignac number, because 22202233121 - 2² = 22202233117 is a prime.

It is a Duffinian number.

22202233121 is a modest number, since divided by 233121 gives 22202 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 22202233093 and 22202233102.

It is not an unprimeable number, because it can be changed into a prime (22202233181) 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, 430751 + ... + 479531.

It is an arithmetic number, because the mean of its divisors is an integer number (1507436973).

Almost surely, 2^22202233121 is an apocalyptic number.

It is an amenable number.

22202233121 is a deficient number, since it is larger than the sum of its proper divisors (1916758447).

22202233121 is a wasteful number, since it uses less digits than its factorization.

22202233121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49492.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 22202233121 its reverse (12133220222), we get a palindrome (34335453343).

The spelling of 22202233121 in words is "twenty-two billion, two hundred two million, two hundred thirty-three thousand, one hundred twenty-one".