221453050 has 144 divisors (see below), whose sum is σ = 547699320. Its totient is φ = 65802240.

The previous prime is 221453041. The next prime is 221453051. The reversal of 221453050 is 50354122.

It can be written as a sum of positive squares in 12 ways, for example, as 41383489 + 180069561 = 6433^2 + 13419^2 .

It is not an unprimeable number, because it can be changed into a prime (221453051) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 541246 + ... + 541654.

Almost surely, 2^221453050 is an apocalyptic number.

221453050 is an abundant number, since it is smaller than the sum of its proper divisors (326246270).

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

221453050 is a wasteful number, since it uses less digits than its factorization.

221453050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465 (or 453 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 221453050 is about 14881.2986664471. The cubic root of 221453050 is about 605.0072170894.

The spelling of 221453050 in words is "two hundred twenty-one million, four hundred fifty-three thousand, fifty".