221120148 has 48 divisors (see below), whose sum is σ = 543965184. Its totient is φ = 69805920.

The previous prime is 221120129. The next prime is 221120149. The reversal of 221120148 is 841021122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221120149) 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, 11161 + ... + 23807.

It is an arithmetic number, because the mean of its divisors is an integer number (11332608).

Almost surely, 2^221120148 is an apocalyptic number.

It is an amenable number.

221120148 is an abundant number, since it is smaller than the sum of its proper divisors (322845036).

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

221120148 is a wasteful number, since it uses less digits than its factorization.

221120148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12732 (or 12730 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 221120148 is about 14870.1092127798. The cubic root of 221120148 is about 604.7039035578.

The spelling of 221120148 in words is "two hundred twenty-one million, one hundred twenty thousand, one hundred forty-eight".