22011121003 has 4 divisors (see below), whose sum is σ = 22968126288. Its totient is φ = 21054115720.

The previous prime is 22011121001. The next prime is 22011121043. The reversal of 22011121003 is 30012111022.

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 22011121003 - 2¹ = 22011121001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22011121001) 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, 478502608 + ... + 478502653.

It is an arithmetic number, because the mean of its divisors is an integer number (5742031572).

Almost surely, 2^22011121003 is an apocalyptic number.

22011121003 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

22011121003 is a deficient number, since it is larger than the sum of its proper divisors (957005285).

22011121003 is an equidigital number, since it uses as much as digits as its factorization.

22011121003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957005284.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 22011121003 its reverse (30012111022), we get a palindrome (52023232025).

The spelling of 22011121003 in words is "twenty-two billion, eleven million, one hundred twenty-one thousand, three".