21002211110322 has 96 divisors (see below), whose sum is σ = 52065127885680. Its totient is φ = 6070751608320.

The previous prime is 21002211110317. The next prime is 21002211110329. The reversal of 21002211110322 is 22301111220012.

21002211110322 is a `hidden beast` number, since 2 + 10 + 0 + 221 + 1 + 110 + 322 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 16362016910001 + 4640194200321 = 4044999^2 + 2154111^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 21002211110295 and 21002211110304.

It is not an unprimeable number, because it can be changed into a prime (21002211110329) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 41572329 + ... + 42074492.

Almost surely, 2^{21002211110322} is an apocalyptic number.

21002211110322 is an abundant number, since it is smaller than the sum of its proper divisors (31062916775358).

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

21002211110322 is a wasteful number, since it uses less digits than its factorization.

21002211110322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83646908 (or 83646905 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 21002211110322 its reverse (22301111220012), we get a palindrome (43303322330334).

The spelling of 21002211110322 in words is "twenty-one trillion, two billion, two hundred eleven million, one hundred ten thousand, three hundred twenty-two".