221102150 has 12 divisors (see below), whose sum is σ = 411250092. Its totient is φ = 88440840.

The previous prime is 221102117. The next prime is 221102191. The reversal of 221102150 is 51201122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2210972 + ... + 2211071.

It is an arithmetic number, because the mean of its divisors is an integer number (34270841).

Almost surely, 2^221102150 is an apocalyptic number.

221102150 is a deficient number, since it is larger than the sum of its proper divisors (190147942).

221102150 is a wasteful number, since it uses less digits than its factorization.

221102150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4422055 (or 4422050 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 221102150 is about 14869.5040266984. The cubic root of 221102150 is about 604.6874965558.

Adding to 221102150 its reverse (51201122), we get a palindrome (272303272).

The spelling of 221102150 in words is "two hundred twenty-one million, one hundred two thousand, one hundred fifty".