21034430211422 has 16 divisors (see below), whose sum is σ = 31842985608720. Its totient is φ = 10420113043008.

The previous prime is 21034430211371. The next prime is 21034430211427. The reversal of 21034430211422 is 22411203443012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21034430211427) 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, 878498 + ... + 6545274.

It is an arithmetic number, because the mean of its divisors is an integer number (1990186600545).

Almost surely, 2^{21034430211422} is an apocalyptic number.

21034430211422 is a deficient number, since it is larger than the sum of its proper divisors (10808555397298).

21034430211422 is a wasteful number, since it uses less digits than its factorization.

21034430211422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5683915.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 21034430211422 its reverse (22411203443012), we get a palindrome (43445633654434).

The spelling of 21034430211422 in words is "twenty-one trillion, thirty-four billion, four hundred thirty million, two hundred eleven thousand, four hundred twenty-two".