1220828232560 has 20 divisors (see below), whose sum is σ = 2838425640888. Its totient is φ = 488331292992.

The previous prime is 1220828232527. The next prime is 1220828232571. The reversal of 1220828232560 is 652328280221.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

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, 7630176374 + ... + 7630176533.

Almost surely, 2^{1220828232560} is an apocalyptic number.

1220828232560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220828232560 is an abundant number, since it is smaller than the sum of its proper divisors (1617597408328).

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

1220828232560 is a wasteful number, since it uses less digits than its factorization.

1220828232560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15260352920 (or 15260352914 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 41.

The spelling of 1220828232560 in words is "one trillion, two hundred twenty billion, eight hundred twenty-eight million, two hundred thirty-two thousand, five hundred sixty".