2145420030522 has 32 divisors (see below), whose sum is σ = 4543435540800. Its totient is φ = 673044339968.

The previous prime is 2145420030491. The next prime is 2145420030541. The reversal of 2145420030522 is 2250300245412.

It is a self number, because there is not a number n which added to its sum of digits gives 2145420030522.

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, 2031304 + ... + 2901212.

It is an arithmetic number, because the mean of its divisors is an integer number (141982360650).

Almost surely, 2^{2145420030522} is an apocalyptic number.

2145420030522 is an abundant number, since it is smaller than the sum of its proper divisors (2398015510278).

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

2145420030522 is a wasteful number, since it uses less digits than its factorization.

2145420030522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894110.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 2145420030522 its reverse (2250300245412), we get a palindrome (4395720275934).

The spelling of 2145420030522 in words is "two trillion, one hundred forty-five billion, four hundred twenty million, thirty thousand, five hundred twenty-two".