21302201102312 has 64 divisors (see below), whose sum is σ = 43104182562000. Its totient is φ = 9811196282880.

The previous prime is 21302201102291. The next prime is 21302201102327. The reversal of 21302201102312 is 21320110220312.

It can be written as a sum of positive squares in 8 ways, for example, as 292133764036 + 21010067338276 = 540494^2 + 4583674^2 .

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, 199740362 + ... + 199846982.

Almost surely, 2^{21302201102312} is an apocalyptic number.

It is an amenable number.

21302201102312 is an abundant number, since it is smaller than the sum of its proper divisors (21801981459688).

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

21302201102312 is a wasteful number, since it uses less digits than its factorization.

21302201102312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110646 (or 110642 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 21302201102312 its reverse (21320110220312), we get a palindrome (42622311322624).

The spelling of 21302201102312 in words is "twenty-one trillion, three hundred two billion, two hundred one million, one hundred two thousand, three hundred twelve".