22021221003 has 8 divisors (see below), whose sum is σ = 29842966416. Its totient is φ = 14440144800.

The previous prime is 22021220987. The next prime is 22021221023. The reversal of 22021221003 is 30012212022.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22021221003 - 2⁴ = 22021220987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22021221023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60167088 + ... + 60167453.

It is an arithmetic number, because the mean of its divisors is an integer number (3730370802).

Almost surely, 2^22021221003 is an apocalyptic number.

22021221003 is a deficient number, since it is larger than the sum of its proper divisors (7821745413).

22021221003 is a wasteful number, since it uses less digits than its factorization.

22021221003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120334605.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 22021221003 its reverse (30012212022), we get a palindrome (52033433025).

The spelling of 22021221003 in words is "twenty-two billion, twenty-one million, two hundred twenty-one thousand, three".