1220311112024 has 8 divisors (see below), whose sum is σ = 2288083335060. Its totient is φ = 610155556008.

The previous prime is 1220311112023. The next prime is 1220311112089. The reversal of 1220311112024 is 4202111130221.

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

It is a junction number, because it is equal to n+sod(n) for n = 1220311111987 and 1220311112005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220311112023) by changing a digit.

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, 76269444494 + ... + 76269444509.

Almost surely, 2^{1220311112024} is an apocalyptic number.

It is an amenable number.

1220311112024 is a deficient number, since it is larger than the sum of its proper divisors (1067772223036).

1220311112024 is a wasteful number, since it uses less digits than its factorization.

1220311112024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152538889009 (or 152538889005 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 1220311112024 its reverse (4202111130221), we get a palindrome (5422422242245).

The spelling of 1220311112024 in words is "one trillion, two hundred twenty billion, three hundred eleven million, one hundred twelve thousand, twenty-four".