221232202 has 4 divisors (see below), whose sum is σ = 331848306. Its totient is φ = 110616100.

The previous prime is 221232199. The next prime is 221232211. The reversal of 221232202 is 202232122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 202232122 = 2 ⋅101116061.

It can be written as a sum of positive squares in only one way, i.e., 166900561 + 54331641 = 12919^2 + 7371^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55308049 + ... + 55308052.

Almost surely, 2^221232202 is an apocalyptic number.

221232202 is a deficient number, since it is larger than the sum of its proper divisors (110616104).

221232202 is a wasteful number, since it uses less digits than its factorization.

221232202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110616103.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 221232202 is about 14873.8764953861. The cubic root of 221232202 is about 604.8060321204.

Adding to 221232202 its reverse (202232122), we get a palindrome (423464324).

The spelling of 221232202 in words is "two hundred twenty-one million, two hundred thirty-two thousand, two hundred two".