22121000143 has 12 divisors (see below), whose sum is σ = 24347294944. Its totient is φ = 20083140000.

The previous prime is 22121000141. The next prime is 22121000147. The reversal of 22121000143 is 34100012122.

It is not a de Polignac number, because 22121000143 - 2¹ = 22121000141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121000141) 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, 30846 + ... + 212587.

Almost surely, 2^22121000143 is an apocalyptic number.

22121000143 is a deficient number, since it is larger than the sum of its proper divisors (2226294801).

22121000143 is a wasteful number, since it uses less digits than its factorization.

22121000143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244206 (or 244195 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 22121000143 its reverse (34100012122), we get a palindrome (56221012265).

The spelling of 22121000143 in words is "twenty-two billion, one hundred twenty-one million, one hundred forty-three", and thus it is an aban number.