2145322322152 has 16 divisors (see below), whose sum is σ = 4023143987940. Its totient is φ = 1072483925376.

The previous prime is 2145322322141. The next prime is 2145322322153. The reversal of 2145322322152 is 2512232235412.

It can be written as a sum of positive squares in 2 ways, for example, as 1798243452196 + 347078869956 = 1340986^2 + 589134^2 .

It is a super-2 number, since 2×2145322322152² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2145322322153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22103013 + ... + 22199860.

Almost surely, 2^{2145322322152} is an apocalyptic number.

It is an amenable number.

2145322322152 is a deficient number, since it is larger than the sum of its proper divisors (1877821665788).

2145322322152 is a wasteful number, since it uses less digits than its factorization.

2145322322152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44308932 (or 44308928 counting only the distinct ones).

The product of its digits is 57600, while the sum is 34.

Adding to 2145322322152 its reverse (2512232235412), we get a palindrome (4657554557564).

The spelling of 2145322322152 in words is "two trillion, one hundred forty-five billion, three hundred twenty-two million, three hundred twenty-two thousand, one hundred fifty-two".