22001211003 has 4 divisors (see below), whose sum is σ = 29334948008. Its totient is φ = 14667474000.

The previous prime is 22001210999. The next prime is 22001211019. The reversal of 22001211003 is 30011210022.

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

It is not a de Polignac number, because 22001211003 - 2² = 22001210999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22001211003.

It is not an unprimeable number, because it can be changed into a prime (22001211103) 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, 3666868498 + ... + 3666868503.

It is an arithmetic number, because the mean of its divisors is an integer number (7333737002).

Almost surely, 2^22001211003 is an apocalyptic number.

22001211003 is a deficient number, since it is larger than the sum of its proper divisors (7333737005).

22001211003 is an equidigital number, since it uses as much as digits as its factorization.

22001211003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7333737004.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 22001211003 its reverse (30011210022), we get a palindrome (52012421025).

The spelling of 22001211003 in words is "twenty-two billion, one million, two hundred eleven thousand, three".