111202021000221 has 16 divisors (see below), whose sum is σ = 152280249334848. Its totient is φ = 72129331612800.

The previous prime is 111202021000193. The next prime is 111202021000243. The reversal of 111202021000221 is 122000120202111.

It is not a de Polignac number, because 111202021000221 - 2⁷ = 111202021000093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111202021000221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111202021000621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7153975 + ... + 16540356.

It is an arithmetic number, because the mean of its divisors is an integer number (9517515583428).

Almost surely, 2^{111202021000221} is an apocalyptic number.

It is an amenable number.

111202021000221 is a deficient number, since it is larger than the sum of its proper divisors (41078228334627).

111202021000221 is a wasteful number, since it uses less digits than its factorization.

111202021000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23736652.

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

Adding to 111202021000221 its reverse (122000120202111), we get a palindrome (233202141202332).

The spelling of 111202021000221 in words is "one hundred eleven trillion, two hundred two billion, twenty-one million, two hundred twenty-one", and thus it is an aban number.