1220304013100 has 18 divisors (see below), whose sum is σ = 2648059708644. Its totient is φ = 488121605200.

The previous prime is 1220304013079. The next prime is 1220304013169. The reversal of 1220304013100 is 13104030221.

It is a super-2 number, since 2×1220304013100² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6101519966 + ... + 6101520165.

It is an arithmetic number, because the mean of its divisors is an integer number (147114428258).

Almost surely, 2^{1220304013100} is an apocalyptic number.

1220304013100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220304013100 is an abundant number, since it is smaller than the sum of its proper divisors (1427755695544).

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

1220304013100 is a wasteful number, since it uses less digits than its factorization.

1220304013100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12203040145 (or 12203040138 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1220304013100 its reverse (13104030221), we get a palindrome (1233408043321).

The spelling of 1220304013100 in words is "one trillion, two hundred twenty billion, three hundred four million, thirteen thousand, one hundred".