221002200220202 has 4 divisors (see below), whose sum is σ = 331503300330306. Its totient is φ = 110501100110100.

The previous prime is 221002200220187. The next prime is 221002200220267. The reversal of 221002200220202 is 202022002200122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 215662999749961 + 5339200470241 = 14685469^2 + 2310671^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55250550055049 + ... + 55250550055052.

Almost surely, 2^{221002200220202} is an apocalyptic number.

221002200220202 is a deficient number, since it is larger than the sum of its proper divisors (110501100110104).

221002200220202 is a wasteful number, since it uses less digits than its factorization.

221002200220202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110501100110103.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 221002200220202 its reverse (202022002200122), we get a palindrome (423024202420324).

The spelling of 221002200220202 in words is "two hundred twenty-one trillion, two billion, two hundred million, two hundred twenty thousand, two hundred two".