22153424552021 has 16 divisors (see below), whose sum is σ = 27329990457600. Its totient is φ = 17536743869568.

The previous prime is 22153424551957. The next prime is 22153424552029. The reversal of 22153424552021 is 12025542435122.

It is not a de Polignac number, because 22153424552021 - 2⁶ = 22153424551957 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 (22153424552029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2372390336 + ... + 2372399673.

It is an arithmetic number, because the mean of its divisors is an integer number (1708124403600).

Almost surely, 2^{22153424552021} is an apocalyptic number.

It is an amenable number.

22153424552021 is a deficient number, since it is larger than the sum of its proper divisors (5176565905579).

22153424552021 is a wasteful number, since it uses less digits than its factorization.

22153424552021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4744790068.

The product of its (nonzero) digits is 192000, while the sum is 38.

Adding to 22153424552021 its reverse (12025542435122), we get a palindrome (34178966987143).

The spelling of 22153424552021 in words is "twenty-two trillion, one hundred fifty-three billion, four hundred twenty-four million, five hundred fifty-two thousand, twenty-one".