21323212021110 has 32 divisors (see below), whose sum is σ = 51182810203392. Its totient is φ = 5685400833120.

The previous prime is 21323212021103. The next prime is 21323212021121. The reversal of 21323212021110 is 1112021232312.

It is a super-2 number, since 2×21323212021110² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49095136 + ... + 49527555.

It is an arithmetic number, because the mean of its divisors is an integer number (1599462818856).

Almost surely, 2^{21323212021110} is an apocalyptic number.

21323212021110 is an abundant number, since it is smaller than the sum of its proper divisors (29859598182282).

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

21323212021110 is a wasteful number, since it uses less digits than its factorization.

21323212021110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98629908.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 21323212021110 its reverse (1112021232312), we get a palindrome (22435233253422).

The spelling of 21323212021110 in words is "twenty-one trillion, three hundred twenty-three billion, two hundred twelve million, twenty-one thousand, one hundred ten".