1220311544048 has 20 divisors (see below), whose sum is σ = 2364389589768. Its totient is φ = 610146488640.

The previous prime is 1220311543993. The next prime is 1220311544069. The reversal of 1220311544048 is 8404451130221.

It is a junction number, because it is equal to n+sod(n) for n = 1220311543999 and 1220311544017.

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, 573815 + ... + 1664297.

Almost surely, 2^{1220311544048} is an apocalyptic number.

It is an amenable number.

1220311544048 is a deficient number, since it is larger than the sum of its proper divisors (1144078045720).

1220311544048 is a wasteful number, since it uses less digits than its factorization.

1220311544048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160432 (or 1160426 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

Adding to 1220311544048 its reverse (8404451130221), we get a palindrome (9624762674269).

The spelling of 1220311544048 in words is "one trillion, two hundred twenty billion, three hundred eleven million, five hundred forty-four thousand, forty-eight".