22053450021 has 8 divisors (see below), whose sum is σ = 29405758560. Its totient is φ = 14701720752.

The previous prime is 22053449989. The next prime is 22053450061. The reversal of 22053450021 is 12005435022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22053450021 - 2⁵ = 22053449989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22053449973 and 22053450000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22053450061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46435 + ... + 215088.

It is an arithmetic number, because the mean of its divisors is an integer number (3675719820).

Almost surely, 2^22053450021 is an apocalyptic number.

It is an amenable number.

22053450021 is a deficient number, since it is larger than the sum of its proper divisors (7352308539).

22053450021 is a wasteful number, since it uses less digits than its factorization.

22053450021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289635.

The product of its (nonzero) digits is 2400, while the sum is 24.

Adding to 22053450021 its reverse (12005435022), we get a palindrome (34058885043).

The spelling of 22053450021 in words is "twenty-two billion, fifty-three million, four hundred fifty thousand, twenty-one".