21201130302312 has 64 divisors (see below), whose sum is σ = 53301190924800. Its totient is φ = 7027264762560.

The previous prime is 21201130302307. The next prime is 21201130302343. The reversal of 21201130302312 is 21320303110212.

It is a super-2 number, since 2×21201130302312² (a number of 27 digits) contains 22 as substring.

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, 116291853 + ... + 116474019.

It is an arithmetic number, because the mean of its divisors is an integer number (832831108200).

Almost surely, 2^{21201130302312} is an apocalyptic number.

It is an amenable number.

21201130302312 is an abundant number, since it is smaller than the sum of its proper divisors (32100060622488).

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

21201130302312 is a wasteful number, since it uses less digits than its factorization.

21201130302312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209446 (or 209442 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 21201130302312 its reverse (21320303110212), we get a palindrome (42521433412524).

The spelling of 21201130302312 in words is "twenty-one trillion, two hundred one billion, one hundred thirty million, three hundred two thousand, three hundred twelve".