223262021 has 2 divisors, whose sum is σ = 223262022. Its totient is φ = 223262020.

The previous prime is 223262009. The next prime is 223262029. The reversal of 223262021 is 120262322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114789796 + 108472225 = 10714^2 + 10415^2 .

It is a cyclic number.

It is not a de Polignac number, because 223262021 - 2⁶ = 223261957 is a prime.

It is a super-3 number, since 3×223262021³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 223261984 and 223262002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223262029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111631010 + 111631011.

It is an arithmetic number, because the mean of its divisors is an integer number (111631011).

Almost surely, 2^223262021 is an apocalyptic number.

It is an amenable number.

223262021 is a deficient number, since it is larger than the sum of its proper divisors (1).

223262021 is an equidigital number, since it uses as much as digits as its factorization.

223262021 is an odious number, because the sum of its binary digits is odd.

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

The square root of 223262021 is about 14941.9550594961. The cubic root of 223262021 is about 606.6501145037.

The spelling of 223262021 in words is "two hundred twenty-three million, two hundred sixty-two thousand, twenty-one".