1220334663700 has 72 divisors (see below), whose sum is σ = 2710034046720. Its totient is φ = 476724998400.

The previous prime is 1220334663697. The next prime is 1220334663727. The reversal of 1220334663700 is 73664330221.

It is a self number, because there is not a number n which added to its sum of digits gives 1220334663700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65182941 + ... + 65201659.

It is an arithmetic number, because the mean of its divisors is an integer number (37639361760).

Almost surely, 2^{1220334663700} is an apocalyptic number.

1220334663700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220334663700 is an abundant number, since it is smaller than the sum of its proper divisors (1489699383020).

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

1220334663700 is a wasteful number, since it uses less digits than its factorization.

1220334663700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33937 (or 33930 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 37.

Adding to 1220334663700 its reverse (73664330221), we get a palindrome (1293998993921).

The spelling of 1220334663700 in words is "one trillion, two hundred twenty billion, three hundred thirty-four million, six hundred sixty-three thousand, seven hundred".