221226054 has 32 divisors (see below), whose sum is σ = 511349760. Its totient is φ = 62496192.

The previous prime is 221226053. The next prime is 221226059. The reversal of 221226054 is 450622122.

It is a happy number.

221226054 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 not an unprimeable number, because it can be changed into a prime (221226053) 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, 25854 + ... + 33329.

It is an arithmetic number, because the mean of its divisors is an integer number (15979680).

Almost surely, 2^221226054 is an apocalyptic number.

221226054 is an abundant number, since it is smaller than the sum of its proper divisors (290123706).

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

221226054 is a wasteful number, since it uses less digits than its factorization.

221226054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59284.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 221226054 is about 14873.6698228783. The cubic root of 221226054 is about 604.8004295877.

Adding to 221226054 its reverse (450622122), we get a palindrome (671848176).

The spelling of 221226054 in words is "two hundred twenty-one million, two hundred twenty-six thousand, fifty-four".