221052414 has 16 divisors (see below), whose sum is σ = 482296320. Its totient is φ = 66985560.

The previous prime is 221052401. The next prime is 221052439. The reversal of 221052414 is 414250122.

221052414 = 1445² + 1446² + ... + 1543².

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1674574 + ... + 1674705.

It is an arithmetic number, because the mean of its divisors is an integer number (30143520).

Almost surely, 2^221052414 is an apocalyptic number.

221052414 is an abundant number, since it is smaller than the sum of its proper divisors (261243906).

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

221052414 is a wasteful number, since it uses less digits than its factorization.

221052414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3349295.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 221052414 is about 14867.8315163981. The cubic root of 221052414 is about 604.6421525181.

The spelling of 221052414 in words is "two hundred twenty-one million, fifty-two thousand, four hundred fourteen".