221452496 has 10 divisors (see below), whose sum is σ = 429064242. Its totient is φ = 110726240.

The previous prime is 221452477. The next prime is 221452501. The reversal of 221452496 is 694254122.

It can be written as a sum of positive squares in only one way, i.e., 220106896 + 1345600 = 14836^2 + 1160^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6920375 + ... + 6920406.

Almost surely, 2^221452496 is an apocalyptic number.

It is an amenable number.

221452496 is a deficient number, since it is larger than the sum of its proper divisors (207611746).

221452496 is a wasteful number, since it uses less digits than its factorization.

221452496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13840789 (or 13840783 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

The square root of 221452496 is about 14881.2800524686. The cubic root of 221452496 is about 605.0067125818.

The spelling of 221452496 in words is "two hundred twenty-one million, four hundred fifty-two thousand, four hundred ninety-six".