223013022021 has 12 divisors (see below), whose sum is σ = 322134205900. Its totient is φ = 148673370240.

The previous prime is 223013022017. The next prime is 223013022083. The reversal of 223013022021 is 120220310322.

223013022021 is a `hidden beast` number, since 22 + 301 + 302 + 20 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 95456899521 + 127556122500 = 308961^2 + 357150^2 .

It is not a de Polignac number, because 223013022021 - 2² = 223013022017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223013021985 and 223013022003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223013022091) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 937005 + ... + 1150653.

Almost surely, 2^223013022021 is an apocalyptic number.

It is an amenable number.

223013022021 is a deficient number, since it is larger than the sum of its proper divisors (99121183879).

223013022021 is a wasteful number, since it uses less digits than its factorization.

223013022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329636 (or 329633 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 223013022021 its reverse (120220310322), we get a palindrome (343233332343).

The spelling of 223013022021 in words is "two hundred twenty-three billion, thirteen million, twenty-two thousand, twenty-one".