21120410214 has 24 divisors (see below), whose sum is σ = 45784959480. Its totient is φ = 7036433568.

The previous prime is 21120410167. The next prime is 21120410219. The reversal of 21120410214 is 41201402112.

21120410214 is a `hidden beast` number, since 21 + 1 + 20 + 410 + 214 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21120410219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 273319 + ... + 341970.

It is an arithmetic number, because the mean of its divisors is an integer number (1907706645).

Almost surely, 2^21120410214 is an apocalyptic number.

21120410214 is an abundant number, since it is smaller than the sum of its proper divisors (24664549266).

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

21120410214 is a wasteful number, since it uses less digits than its factorization.

21120410214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617204 (or 617201 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 21120410214 its reverse (41201402112), we get a palindrome (62321812326).

The spelling of 21120410214 in words is "twenty-one billion, one hundred twenty million, four hundred ten thousand, two hundred fourteen".