21230215614112 has 24 divisors (see below), whose sum is σ = 41834008307700. Its totient is φ = 10605705567744.

The previous prime is 21230215614103. The next prime is 21230215614137. The reversal of 21230215614112 is 21141651203212.

It can be written as a sum of positive squares in 2 ways, for example, as 21215641329936 + 14574284176 = 4606044^2 + 120724^2 .

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, 293783287 + ... + 293855542.

Almost surely, 2^{21230215614112} is an apocalyptic number.

It is an amenable number.

21230215614112 is a deficient number, since it is larger than the sum of its proper divisors (20603792693588).

21230215614112 is a wasteful number, since it uses less digits than its factorization.

21230215614112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587639968 (or 587639960 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

Adding to 21230215614112 its reverse (21141651203212), we get a palindrome (42371866817324).

The spelling of 21230215614112 in words is "twenty-one trillion, two hundred thirty billion, two hundred fifteen million, six hundred fourteen thousand, one hundred twelve".