21021213003322 has 64 divisors (see below), whose sum is σ = 36770733748224. Its totient is φ = 8827097489280.

The previous prime is 21021213003317. The next prime is 21021213003347. The reversal of 21021213003322 is 22330031212012.

It is a super-2 number, since 2×21021213003322² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21021213003293 and 21021213003302.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 969915478 + ... + 969937150.

It is an arithmetic number, because the mean of its divisors is an integer number (574542714816).

Almost surely, 2^{21021213003322} is an apocalyptic number.

21021213003322 is a deficient number, since it is larger than the sum of its proper divisors (15749520744902).

21021213003322 is a wasteful number, since it uses less digits than its factorization.

21021213003322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27763.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21021213003322 its reverse (22330031212012), we get a palindrome (43351244215334).

The spelling of 21021213003322 in words is "twenty-one trillion, twenty-one billion, two hundred thirteen million, three thousand, three hundred twenty-two".