1210220340424 has 8 divisors (see below), whose sum is σ = 2269163138310. Its totient is φ = 605110170208.

The previous prime is 1210220340409. The next prime is 1210220340437. The reversal of 1210220340424 is 4240430220121.

It can be written as a sum of positive squares in only one way, i.e., 1163572116100 + 46648224324 = 1078690^2 + 215982^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75638771269 + ... + 75638771284.

Almost surely, 2^{1210220340424} is an apocalyptic number.

It is an amenable number.

1210220340424 is a deficient number, since it is larger than the sum of its proper divisors (1058942797886).

1210220340424 is a wasteful number, since it uses less digits than its factorization.

1210220340424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151277542559 (or 151277542555 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 1210220340424 its reverse (4240430220121), we get a palindrome (5450650560545).

The spelling of 1210220340424 in words is "one trillion, two hundred ten billion, two hundred twenty million, three hundred forty thousand, four hundred twenty-four".