22121220303 has 96 divisors (see below), whose sum is σ = 40484161536. Its totient is φ = 11326397184.

The previous prime is 22121220223. The next prime is 22121220311. The reversal of 22121220303 is 30302212122.

22121220303 is a `hidden beast` number, since 22 + 121 + 220 + 303 = 666.

It is not a de Polignac number, because 22121220303 - 2¹⁸ = 22120958159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121220353) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 24938926 + ... + 24939812.

It is an arithmetic number, because the mean of its divisors is an integer number (421710016).

Almost surely, 2^22121220303 is an apocalyptic number.

22121220303 is a deficient number, since it is larger than the sum of its proper divisors (18362941233).

22121220303 is a wasteful number, since it uses less digits than its factorization.

22121220303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1773 (or 1770 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 22121220303 its reverse (30302212122), we get a palindrome (52423432425).

The spelling of 22121220303 in words is "twenty-two billion, one hundred twenty-one million, two hundred twenty thousand, three hundred three".