21213830872022 has 16 divisors (see below), whose sum is σ = 32361411237120. Its totient is φ = 10426708573608.

The previous prime is 21213830872021. The next prime is 21213830872037. The reversal of 21213830872022 is 22027803831212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21213830872021) 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, 802898 + ... + 6562949.

It is an arithmetic number, because the mean of its divisors is an integer number (2022588202320).

Almost surely, 2^{21213830872022} is an apocalyptic number.

21213830872022 is a deficient number, since it is larger than the sum of its proper divisors (11147580365098).

21213830872022 is a wasteful number, since it uses less digits than its factorization.

21213830872022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7390315.

The product of its (nonzero) digits is 129024, while the sum is 41.

The spelling of 21213830872022 in words is "twenty-one trillion, two hundred thirteen billion, eight hundred thirty million, eight hundred seventy-two thousand, twenty-two".