221201131102 has 48 divisors (see below), whose sum is σ = 388568689920. Its totient is φ = 94163740272.

The previous prime is 221201131069. The next prime is 221201131121. The reversal of 221201131102 is 201131102122.

221201131102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 in 23 ways as a sum of consecutive naturals, for example, 39085549 + ... + 39091207.

It is an arithmetic number, because the mean of its divisors is an integer number (8095181040).

Almost surely, 2^221201131102 is an apocalyptic number.

221201131102 is a deficient number, since it is larger than the sum of its proper divisors (167367558818).

221201131102 is a wasteful number, since it uses less digits than its factorization.

221201131102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8285 (or 8278 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 221201131102 its reverse (201131102122), we get a palindrome (422332233224).

The spelling of 221201131102 in words is "two hundred twenty-one billion, two hundred one million, one hundred thirty-one thousand, one hundred two".