210221200988 has 6 divisors (see below), whose sum is σ = 367887101736. Its totient is φ = 105110600492.

The previous prime is 210221200963. The next prime is 210221201027. The reversal of 210221200988 is 889002122012.

210221200988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×210221200988² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 26277650120 + ... + 26277650127.

It is an arithmetic number, because the mean of its divisors is an integer number (61314516956).

Almost surely, 2^210221200988 is an apocalyptic number.

It is an amenable number.

210221200988 is a deficient number, since it is larger than the sum of its proper divisors (157665900748).

210221200988 is a wasteful number, since it uses less digits than its factorization.

210221200988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52555300251 (or 52555300249 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 35.

The spelling of 210221200988 in words is "two hundred ten billion, two hundred twenty-one million, two hundred thousand, nine hundred eighty-eight".