22121210120003 has 4 divisors (see below), whose sum is σ = 22121508199248. Its totient is φ = 22120912040760.

The previous prime is 22121210119993. The next prime is 22121210120063. The reversal of 22121210120003 is 30002101212122.

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 22121210120003 - 2²⁰ = 22121209071427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22121210120063) 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, 148928276 + ... + 149076737.

It is an arithmetic number, because the mean of its divisors is an integer number (5530377049812).

Almost surely, 2^{22121210120003} is an apocalyptic number.

22121210120003 is a deficient number, since it is larger than the sum of its proper divisors (298079245).

22121210120003 is an equidigital number, since it uses as much as digits as its factorization.

22121210120003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298079244.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 22121210120003 its reverse (30002101212122), we get a palindrome (52123311332125).

The spelling of 22121210120003 in words is "twenty-two trillion, one hundred twenty-one billion, two hundred ten million, one hundred twenty thousand, three".