21214144141212 has 48 divisors (see below), whose sum is σ = 57176089028352. Its totient is φ = 6050379790080.

The previous prime is 21214144141187. The next prime is 21214144141241.

It is a happy number.

21214144141212 is nontrivially palindromic in base 10.

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

It is a self number, because there is not a number n which added to its sum of digits gives 21214144141212.

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 15 ways as a sum of consecutive naturals, for example, 4726856968 + ... + 4726861455.

It is an arithmetic number, because the mean of its divisors is an integer number (1191168521424).

Almost surely, 2^{21214144141212} is an apocalyptic number.

21214144141212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21214144141212 is an abundant number, since it is smaller than the sum of its proper divisors (35961944887140).

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

21214144141212 is a wasteful number, since it uses less digits than its factorization.

21214144141212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9453718458 (or 9453718456 counting only the distinct ones).

The product of its digits is 4096, while the sum is 30.

It can be divided in two parts, 2121414 and 4141212, that added together give a palindrome (6262626).

The spelling of 21214144141212 in words is "twenty-one trillion, two hundred fourteen billion, one hundred forty-four million, one hundred forty-one thousand, two hundred twelve".