221111012202 has 8 divisors (see below), whose sum is σ = 442222024416. Its totient is φ = 73703670732.

The previous prime is 221111012149. The next prime is 221111012251. The reversal of 221111012202 is 202210111122.

221111012202 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

221111012202 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18425917678 + ... + 18425917689.

It is an arithmetic number, because the mean of its divisors is an integer number (55277753052).

Almost surely, 2^221111012202 is an apocalyptic number.

221111012202 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

221111012202 is a wasteful number, since it uses less digits than its factorization.

221111012202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36851835372.

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

Adding to 221111012202 its reverse (202210111122), we get a palindrome (423321123324).

The spelling of 221111012202 in words is "two hundred twenty-one billion, one hundred eleven million, twelve thousand, two hundred two".