221320011200120 has 64 divisors (see below), whose sum is σ = 578438249457600. Its totient is φ = 74637193466880.

The previous prime is 221320011200087. The next prime is 221320011200137. The reversal of 221320011200120 is 21002110023122.

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, 6478905965 + ... + 6478940124.

It is an arithmetic number, because the mean of its divisors is an integer number (9038097647775).

Almost surely, 2^{221320011200120} is an apocalyptic number.

221320011200120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221320011200120 is an abundant number, since it is smaller than the sum of its proper divisors (357118238257480).

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

221320011200120 is a wasteful number, since it uses less digits than its factorization.

221320011200120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12957846168 (or 12957846164 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 221320011200120 its reverse (21002110023122), we get a palindrome (242322121223242).

The spelling of 221320011200120 in words is "two hundred twenty-one trillion, three hundred twenty billion, eleven million, two hundred thousand, one hundred twenty".