22112021003 has 4 divisors (see below), whose sum is σ = 22486801080. Its totient is φ = 21737240928.

The previous prime is 22112020999. The next prime is 22112021011. The reversal of 22112021003 is 30012021122.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22112021003 - 2² = 22112020999 is a prime.

It is a super-2 number, since 2×22112021003² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22112021053) 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, 187389950 + ... + 187390067.

It is an arithmetic number, because the mean of its divisors is an integer number (5621700270).

Almost surely, 2^22112021003 is an apocalyptic number.

22112021003 is a deficient number, since it is larger than the sum of its proper divisors (374780077).

22112021003 is an equidigital number, since it uses as much as digits as its factorization.

22112021003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374780076.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 22112021003 its reverse (30012021122), we get a palindrome (52124042125).

The spelling of 22112021003 in words is "twenty-two billion, one hundred twelve million, twenty-one thousand, three".