1220355403130 has 64 divisors (see below), whose sum is σ = 2274628801536. Its totient is φ = 471080064000.

The previous prime is 1220355403123. The next prime is 1220355403139. The reversal of 1220355403130 is 313045530221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1220355403093 and 1220355403102.

It is not an unprimeable number, because it can be changed into a prime (1220355403139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38455670 + ... + 38487390.

It is an arithmetic number, because the mean of its divisors is an integer number (35541075024).

Almost surely, 2^{1220355403130} is an apocalyptic number.

1220355403130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220355403130 is a deficient number, since it is larger than the sum of its proper divisors (1054273398406).

1220355403130 is a wasteful number, since it uses less digits than its factorization.

1220355403130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32783.

The product of its (nonzero) digits is 10800, while the sum is 29.

The spelling of 1220355403130 in words is "one trillion, two hundred twenty billion, three hundred fifty-five million, four hundred three thousand, one hundred thirty".