221002201120100 has 36 divisors (see below), whose sum is σ = 481306093373364. Its totient is φ = 88081743684480.

The previous prime is 221002201120097. The next prime is 221002201120121. The reversal of 221002201120100 is 1021102200122.

It can be written as a sum of positive squares in 6 ways, for example, as 24360364526884 + 196641836593216 = 4935622^2 + 14022904^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3989181707 + ... + 3989237106.

Almost surely, 2^{221002201120100} is an apocalyptic number.

221002201120100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221002201120100 is an abundant number, since it is smaller than the sum of its proper divisors (260303892253264).

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

221002201120100 is a wasteful number, since it uses less digits than its factorization.

221002201120100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7978419104 (or 7978419097 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 221002201120100 its reverse (1021102200122), we get a palindrome (222023303320222).

The spelling of 221002201120100 in words is "two hundred twenty-one trillion, two billion, two hundred one million, one hundred twenty thousand, one hundred".