22121385003 has 12 divisors (see below), whose sum is σ = 31968702480. Its totient is φ = 14740394256.

The previous prime is 22121384993. The next prime is 22121385043. The reversal of 22121385003 is 30058312122.

22121385003 is a `hidden beast` number, since 2 + 2 + 121 + 38 + 500 + 3 = 666.

It is not a de Polignac number, because 22121385003 - 2¹³ = 22121376811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22121385043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 580143 + ... + 617096.

It is an arithmetic number, because the mean of its divisors is an integer number (2664058540).

Almost surely, 2^22121385003 is an apocalyptic number.

22121385003 is a deficient number, since it is larger than the sum of its proper divisors (9847317477).

22121385003 is a wasteful number, since it uses less digits than its factorization.

22121385003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1199298 (or 1199295 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 22121385003 its reverse (30058312122), we get a palindrome (52179697125).

The spelling of 22121385003 in words is "twenty-two billion, one hundred twenty-one million, three hundred eighty-five thousand, three".