21230212614460 has 24 divisors (see below), whose sum is σ = 44908873112880. Its totient is φ = 8430099022464.

The previous prime is 21230212614407. The next prime is 21230212614469. The reversal of 21230212614460 is 6441621203212.

It is a super-3 number, since 3×21230212614460³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21230212614469) 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 7 ways as a sum of consecutive naturals, for example, 3874123650 + ... + 3874129129.

It is an arithmetic number, because the mean of its divisors is an integer number (1871203046370).

Almost surely, 2^{21230212614460} is an apocalyptic number.

21230212614460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21230212614460 is an abundant number, since it is smaller than the sum of its proper divisors (23678660498420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21230212614460 is a wasteful number, since it uses less digits than its factorization.

21230212614460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7748252925 (or 7748252923 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

Adding to 21230212614460 its reverse (6441621203212), we get a palindrome (27671833817672).

The spelling of 21230212614460 in words is "twenty-one trillion, two hundred thirty billion, two hundred twelve million, six hundred fourteen thousand, four hundred sixty".