22121420003 has 4 divisors (see below), whose sum is σ = 22282890360. Its totient is φ = 21959949648.

The previous prime is 22121419973. The next prime is 22121420063. The reversal of 22121420003 is 30002412122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30002412122 = 2 ⋅15001206061.

It is a cyclic number.

It is not a de Polignac number, because 22121420003 - 2¹² = 22121415907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22121420063) 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, 80734973 + ... + 80735246.

It is an arithmetic number, because the mean of its divisors is an integer number (5570722590).

Almost surely, 2^22121420003 is an apocalyptic number.

22121420003 is a deficient number, since it is larger than the sum of its proper divisors (161470357).

22121420003 is a wasteful number, since it uses less digits than its factorization.

22121420003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161470356.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 22121420003 its reverse (30002412122), we get a palindrome (52123832125).

The spelling of 22121420003 in words is "twenty-two billion, one hundred twenty-one million, four hundred twenty thousand, three".