1220313050400 has 72 divisors (see below), whose sum is σ = 3972118986864. Its totient is φ = 325416812800.

The previous prime is 1220313050303. The next prime is 1220313050431. The reversal of 1220313050400 is 40503130221.

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, 254229486 + ... + 254234285.

It is an arithmetic number, because the mean of its divisors is an integer number (55168319262).

Almost surely, 2^{1220313050400} is an apocalyptic number.

1220313050400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220313050400 is an abundant number, since it is smaller than the sum of its proper divisors (2751805936464).

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

1220313050400 is a wasteful number, since it uses less digits than its factorization.

1220313050400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508463794 (or 508463781 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 1220313050400 its reverse (40503130221), we get a palindrome (1260816180621).

The spelling of 1220313050400 in words is "one trillion, two hundred twenty billion, three hundred thirteen million, fifty thousand, four hundred".