21214204243032 has 32 divisors (see below), whose sum is σ = 53036371514880. Its totient is φ = 7071286626720.

The previous prime is 21214204243019. The next prime is 21214204243033. The reversal of 21214204243032 is 23034240241212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21214204243033) 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, 5658388 + ... + 8628195.

It is an arithmetic number, because the mean of its divisors is an integer number (1657386609840).

Almost surely, 2^{21214204243032} is an apocalyptic number.

It is an amenable number.

21214204243032 is an abundant number, since it is smaller than the sum of its proper divisors (31822167271848).

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

21214204243032 is a wasteful number, since it uses less digits than its factorization.

21214204243032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14348463 (or 14348459 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 21214204243032 its reverse (23034240241212), we get a palindrome (44248444484244).

The spelling of 21214204243032 in words is "twenty-one trillion, two hundred fourteen billion, two hundred four million, two hundred forty-three thousand, thirty-two".