1321220422124 has 6 divisors (see below), whose sum is σ = 2312135738724. Its totient is φ = 660610211060.

The previous prime is 1321220422099. The next prime is 1321220422141. The reversal of 1321220422124 is 4212240221231.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1321220422093 and 1321220422102.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165152552762 + ... + 165152552769.

It is an arithmetic number, because the mean of its divisors is an integer number (385355956454).

Almost surely, 2^{1321220422124} is an apocalyptic number.

It is an amenable number.

1321220422124 is a deficient number, since it is larger than the sum of its proper divisors (990915316600).

1321220422124 is a wasteful number, since it uses less digits than its factorization.

1321220422124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330305105535 (or 330305105533 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 1321220422124 its reverse (4212240221231), we get a palindrome (5533460643355).

The spelling of 1321220422124 in words is "one trillion, three hundred twenty-one billion, two hundred twenty million, four hundred twenty-two thousand, one hundred twenty-four".