21333403246612 has 24 divisors (see below), whose sum is σ = 37423673834400. Its totient is φ = 10640926529376.

The previous prime is 21333403246577. The next prime is 21333403246613. The reversal of 21333403246612 is 21664230433312.

It is a super-2 number, since 2×21333403246612² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21333403246613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62073598 + ... + 62416330.

It is an arithmetic number, because the mean of its divisors is an integer number (1559319743100).

Almost surely, 2^{21333403246612} is an apocalyptic number.

It is an amenable number.

21333403246612 is a deficient number, since it is larger than the sum of its proper divisors (16090270587788).

21333403246612 is a wasteful number, since it uses less digits than its factorization.

21333403246612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380295 (or 380293 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 40.

Adding to 21333403246612 its reverse (21664230433312), we get a palindrome (42997633679924).

The spelling of 21333403246612 in words is "twenty-one trillion, three hundred thirty-three billion, four hundred three million, two hundred forty-six thousand, six hundred twelve".