21115525422022 has 8 divisors (see below), whose sum is σ = 31915068958872. Its totient is φ = 10477169102400.

The previous prime is 21115525421993. The next prime is 21115525422037. The reversal of 21115525422022 is 22022452551112.

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

It is a super-3 number, since 3×21115525422022³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40296803979 + ... + 40296804502.

It is an arithmetic number, because the mean of its divisors is an integer number (3989383619859).

Almost surely, 2^{21115525422022} is an apocalyptic number.

21115525422022 is a deficient number, since it is larger than the sum of its proper divisors (10799543536850).

21115525422022 is a wasteful number, since it uses less digits than its factorization.

21115525422022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80593608614.

The product of its (nonzero) digits is 32000, while the sum is 34.

Adding to 21115525422022 its reverse (22022452551112), we get a palindrome (43137977973134).

The spelling of 21115525422022 in words is "twenty-one trillion, one hundred fifteen billion, five hundred twenty-five million, four hundred twenty-two thousand, twenty-two".