1223502355220 has 48 divisors (see below), whose sum is σ = 2573999178240. Its totient is φ = 488516966784.

The previous prime is 1223502355189. The next prime is 1223502355237. The reversal of 1223502355220 is 225532053221.

It is a super-2 number, since 2×1223502355220² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32971517 + ... + 33008603.

It is an arithmetic number, because the mean of its divisors is an integer number (53624982880).

Almost surely, 2^{1223502355220} is an apocalyptic number.

1223502355220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223502355220 is an abundant number, since it is smaller than the sum of its proper divisors (1350496823020).

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

1223502355220 is a wasteful number, since it uses less digits than its factorization.

1223502355220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40032 (or 40030 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 32.

The spelling of 1223502355220 in words is "one trillion, two hundred twenty-three billion, five hundred two million, three hundred fifty-five thousand, two hundred twenty".