222121222003 has 4 divisors (see below), whose sum is σ = 224086896648. Its totient is φ = 220155547360.

The previous prime is 222121221977. The next prime is 222121222019. The reversal of 222121222003 is 300222121222.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222121222003 is a prime.

It is a super-2 number, since 2×222121222003² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222121222033) 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, 982837153 + ... + 982837378.

It is an arithmetic number, because the mean of its divisors is an integer number (56021724162).

Almost surely, 2^222121222003 is an apocalyptic number.

222121222003 is a deficient number, since it is larger than the sum of its proper divisors (1965674645).

222121222003 is a wasteful number, since it uses less digits than its factorization.

222121222003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1965674644.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 222121222003 its reverse (300222121222), we get a palindrome (522343343225).

The spelling of 222121222003 in words is "two hundred twenty-two billion, one hundred twenty-one million, two hundred twenty-two thousand, three".