221199052 has 48 divisors (see below), whose sum is σ = 408432640. Its totient is φ = 104727168.

The previous prime is 221199001. The next prime is 221199101. The reversal of 221199052 is 250991122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 991813 + ... + 992035.

Almost surely, 2^221199052 is an apocalyptic number.

It is an amenable number.

221199052 is a deficient number, since it is larger than the sum of its proper divisors (187233588).

221199052 is a wasteful number, since it uses less digits than its factorization.

221199052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422 (or 420 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 221199052 is about 14872.7620837557. The cubic root of 221199052 is about 604.7758220496.

The spelling of 221199052 in words is "two hundred twenty-one million, one hundred ninety-nine thousand, fifty-two".