21213611462246 has 16 divisors (see below), whose sum is σ = 38280201135360. Its totient is φ = 8613045255240.

The previous prime is 21213611462233. The next prime is 21213611462317. The reversal of 21213611462246 is 64226411631212.

It is a super-2 number, since 2×21213611462246² (a number of 27 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 39875209250 + ... + 39875209781.

It is an arithmetic number, because the mean of its divisors is an integer number (2392512570960).

Almost surely, 2^{21213611462246} is an apocalyptic number.

21213611462246 is a deficient number, since it is larger than the sum of its proper divisors (17066589673114).

21213611462246 is a wasteful number, since it uses less digits than its factorization.

21213611462246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79750419059.

The product of its digits is 165888, while the sum is 41.

The spelling of 21213611462246 in words is "twenty-one trillion, two hundred thirteen billion, six hundred eleven million, four hundred sixty-two thousand, two hundred forty-six".