1331220220024 has 16 divisors (see below), whose sum is σ = 2554085306520. Its totient is φ = 650130804960.

The previous prime is 1331220220009. The next prime is 1331220220061. The reversal of 1331220220024 is 4200220221331.

It is a junction number, because it is equal to n+sod(n) for n = 1331220219977 and 1331220220004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1934912767 + ... + 1934913454.

Almost surely, 2^{1331220220024} is an apocalyptic number.

It is an amenable number.

1331220220024 is a deficient number, since it is larger than the sum of its proper divisors (1222865086496).

1331220220024 is a wasteful number, since it uses less digits than its factorization.

1331220220024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3869826270 (or 3869826266 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 1331220220024 its reverse (4200220221331), we get a palindrome (5531440441355).

The spelling of 1331220220024 in words is "one trillion, three hundred thirty-one billion, two hundred twenty million, two hundred twenty thousand, twenty-four".