1321030032212 has 18 divisors (see below), whose sum is σ = 2541072232314. Its totient is φ = 600468196240.

The previous prime is 1321030032193. The next prime is 1321030032221. The reversal of 1321030032212 is 2122300301231.

It can be written as a sum of positive squares in only one way, i.e., 1146342814276 + 174687217936 = 1070674^2 + 417956^2 .

It is a super-2 number, since 2×1321030032212² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1364699963 + ... + 1364700930.

It is an arithmetic number, because the mean of its divisors is an integer number (141170679573).

Almost surely, 2^{1321030032212} is an apocalyptic number.

It is an amenable number.

1321030032212 is a deficient number, since it is larger than the sum of its proper divisors (1220042200102).

1321030032212 is a wasteful number, since it uses less digits than its factorization.

1321030032212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2729400919 (or 2729400906 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1321030032212 its reverse (2122300301231), we get a palindrome (3443330333443).

The spelling of 1321030032212 in words is "one trillion, three hundred twenty-one billion, thirty million, thirty-two thousand, two hundred twelve".