222013033421 has 4 divisors (see below), whose sum is σ = 222965879292. Its totient is φ = 221060187552.

The previous prime is 222013033399. The next prime is 222013033433. The reversal of 222013033421 is 124330310222.

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 27544381225 + 194468652196 = 165965^2 + 440986^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222013033421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222013063421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 476422586 + ... + 476423051.

It is an arithmetic number, because the mean of its divisors is an integer number (55741469823).

Almost surely, 2^222013033421 is an apocalyptic number.

It is an amenable number.

222013033421 is a deficient number, since it is larger than the sum of its proper divisors (952845871).

222013033421 is an equidigital number, since it uses as much as digits as its factorization.

222013033421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952845870.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 222013033421 its reverse (124330310222), we get a palindrome (346343343643).

The spelling of 222013033421 in words is "two hundred twenty-two billion, thirteen million, thirty-three thousand, four hundred twenty-one".