22250120421 has 16 divisors (see below), whose sum is σ = 31427383104. Its totient is φ = 13953993984.

The previous prime is 22250120401. The next prime is 22250120437. The reversal of 22250120421 is 12402105222.

It is not a de Polignac number, because 22250120421 - 2⁷ = 22250120293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22250120401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1551 + ... + 210956.

It is an arithmetic number, because the mean of its divisors is an integer number (1964211444).

Almost surely, 2^22250120421 is an apocalyptic number.

It is an amenable number.

22250120421 is a deficient number, since it is larger than the sum of its proper divisors (9177262683).

22250120421 is a wasteful number, since it uses less digits than its factorization.

22250120421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214580.

The product of its (nonzero) digits is 640, while the sum is 21.

Adding to 22250120421 its reverse (12402105222), we get a palindrome (34652225643).

The spelling of 22250120421 in words is "twenty-two billion, two hundred fifty million, one hundred twenty thousand, four hundred twenty-one".