21214420040330 has 64 divisors (see below), whose sum is σ = 43890623981568. Its totient is φ = 7307288535360.

The previous prime is 21214420040329. The next prime is 21214420040339. The reversal of 21214420040330 is 3304002441212.

It is a super-3 number, since 3×21214420040330³ (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21214420040330.

It is not an unprimeable number, because it can be changed into a prime (21214420040339) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40444004 + ... + 40965183.

It is an arithmetic number, because the mean of its divisors is an integer number (685790999712).

Almost surely, 2^{21214420040330} is an apocalyptic number.

21214420040330 is an abundant number, since it is smaller than the sum of its proper divisors (22676203941238).

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

21214420040330 is a wasteful number, since it uses less digits than its factorization.

21214420040330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81409331.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 21214420040330 its reverse (3304002441212), we get a palindrome (24518422481542).

The spelling of 21214420040330 in words is "twenty-one trillion, two hundred fourteen billion, four hundred twenty million, forty thousand, three hundred thirty".