223033122121 has 4 divisors (see below), whose sum is σ = 223267155732. Its totient is φ = 222799088512.

The previous prime is 223033122107. The next prime is 223033122161. The reversal of 223033122121 is 121221330322.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 149247005625 + 73786116496 = 386325^2 + 271636^2 .

It is a cyclic number.

It is not a de Polignac number, because 223033122121 - 2²³ = 223024733513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223033122092 and 223033122101.

It is not an unprimeable number, because it can be changed into a prime (223033122101) 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, 117015376 + ... + 117017281.

It is an arithmetic number, because the mean of its divisors is an integer number (55816788933).

Almost surely, 2^223033122121 is an apocalyptic number.

It is an amenable number.

223033122121 is a deficient number, since it is larger than the sum of its proper divisors (234033611).

223033122121 is an equidigital number, since it uses as much as digits as its factorization.

223033122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234033610.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 223033122121 its reverse (121221330322), we get a palindrome (344254452443).

The spelling of 223033122121 in words is "two hundred twenty-three billion, thirty-three million, one hundred twenty-two thousand, one hundred twenty-one".