2145523144022 has 64 divisors (see below), whose sum is σ = 3634786068480. Its totient is φ = 943789257216.

The previous prime is 2145523143989. The next prime is 2145523144027. The reversal of 2145523144022 is 2204413255412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145523144027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42708443 + ... + 42758649.

It is an arithmetic number, because the mean of its divisors is an integer number (56793532320).

Almost surely, 2^{2145523144022} is an apocalyptic number.

2145523144022 is a deficient number, since it is larger than the sum of its proper divisors (1489262924458).

2145523144022 is a wasteful number, since it uses less digits than its factorization.

2145523144022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51125.

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 2145523144022 its reverse (2204413255412), we get a palindrome (4349936399434).

The spelling of 2145523144022 in words is "two trillion, one hundred forty-five billion, five hundred twenty-three million, one hundred forty-four thousand, twenty-two".