1220515114550 has 24 divisors (see below), whose sum is σ = 2270752284576. Its totient is φ = 488078267040.

The previous prime is 1220515114549. The next prime is 1220515114583. The reversal of 1220515114550 is 554115150221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3001409 + ... + 3383708.

It is an arithmetic number, because the mean of its divisors is an integer number (94614678524).

Almost surely, 2^{1220515114550} is an apocalyptic number.

1220515114550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220515114550 is a deficient number, since it is larger than the sum of its proper divisors (1050237170026).

1220515114550 is a wasteful number, since it uses less digits than its factorization.

1220515114550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6388952 (or 6388947 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 32.

The spelling of 1220515114550 in words is "one trillion, two hundred twenty billion, five hundred fifteen million, one hundred fourteen thousand, five hundred fifty".