21213010122322 has 16 divisors (see below), whose sum is σ = 31832775322200. Its totient is φ = 10602085908352.

The previous prime is 21213010122319. The next prime is 21213010122391. The reversal of 21213010122322 is 22322101031212.

It can be written as a sum of positive squares in 4 ways, for example, as 10326897175401 + 10886112946921 = 3213549^2 + 3299411^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21213010122293 and 21213010122302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48363054 + ... + 48799702.

Almost surely, 2^{21213010122322} is an apocalyptic number.

21213010122322 is a deficient number, since it is larger than the sum of its proper divisors (10619765199878).

21213010122322 is a wasteful number, since it uses less digits than its factorization.

21213010122322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446717.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 21213010122322 its reverse (22322101031212), we get a palindrome (43535111153534).

The spelling of 21213010122322 in words is "twenty-one trillion, two hundred thirteen billion, ten million, one hundred twenty-two thousand, three hundred twenty-two".