221200002111120 has 80 divisors (see below), whose sum is σ = 685721550690432. Its totient is φ = 58986534400000.

The previous prime is 221200002111061. The next prime is 221200002111161. The reversal of 221200002111120 is 21111200002122.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 221200002111120.

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, 153784384 + ... + 155216096.

Almost surely, 2^{221200002111120} is an apocalyptic number.

221200002111120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221200002111120 is an abundant number, since it is smaller than the sum of its proper divisors (464521548579312).

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

221200002111120 is a wasteful number, since it uses less digits than its factorization.

221200002111120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2075480 (or 2075474 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 221200002111120 its reverse (21111200002122), we get a palindrome (242311202113242).

The spelling of 221200002111120 in words is "two hundred twenty-one trillion, two hundred billion, two million, one hundred eleven thousand, one hundred twenty".