1220452225660 has 12 divisors (see below), whose sum is σ = 2562949673928. Its totient is φ = 488180890256.

The previous prime is 1220452225649. The next prime is 1220452225691. The reversal of 1220452225660 is 665222540221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30511305622 + ... + 30511305661.

It is an arithmetic number, because the mean of its divisors is an integer number (213579139494).

Almost surely, 2^{1220452225660} is an apocalyptic number.

1220452225660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220452225660 is an abundant number, since it is smaller than the sum of its proper divisors (1342497448268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220452225660 is a wasteful number, since it uses less digits than its factorization.

1220452225660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61022611292 (or 61022611290 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

Adding to 1220452225660 its reverse (665222540221), we get a palindrome (1885674765881).

The spelling of 1220452225660 in words is "one trillion, two hundred twenty billion, four hundred fifty-two million, two hundred twenty-five thousand, six hundred sixty".