22200240021 has 32 divisors (see below), whose sum is σ = 31824129792. Its totient is φ = 13733660160.

The previous prime is 22200239989. The next prime is 22200240037. The reversal of 22200240021 is 12004200222.

It is not a de Polignac number, because 22200240021 - 2⁵ = 22200239989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22200240061) 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 31 ways as a sum of consecutive naturals, for example, 271131 + ... + 343383.

It is an arithmetic number, because the mean of its divisors is an integer number (994504056).

Almost surely, 2^22200240021 is an apocalyptic number.

It is an amenable number.

22200240021 is a deficient number, since it is larger than the sum of its proper divisors (9623889771).

22200240021 is a wasteful number, since it uses less digits than its factorization.

22200240021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72413.

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 22200240021 its reverse (12004200222), we get a palindrome (34204440243).

The spelling of 22200240021 in words is "twenty-two billion, two hundred million, two hundred forty thousand, twenty-one".