21241211214212 has 12 divisors (see below), whose sum is σ = 40551403227216. Its totient is φ = 9655096006440.

The previous prime is 21241211214203. The next prime is 21241211214233.

21241211214212 is nontrivially palindromic in base 10.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241377400118 + ... + 241377400205.

It is an arithmetic number, because the mean of its divisors is an integer number (3379283602268).

Almost surely, 2^{21241211214212} is an apocalyptic number.

21241211214212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21241211214212 is a deficient number, since it is larger than the sum of its proper divisors (19310192013004).

21241211214212 is a wasteful number, since it uses less digits than its factorization.

21241211214212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482754800338 (or 482754800336 counting only the distinct ones).

The product of its digits is 1024, while the sum is 26.

It can be divided in two parts, 2124121 and 1214212, that added together give a palindrome (3338333).

The spelling of 21241211214212 in words is "twenty-one trillion, two hundred forty-one billion, two hundred eleven million, two hundred fourteen thousand, two hundred twelve".