221021222220202 has 8 divisors (see below), whose sum is σ = 334750588994016. Its totient is φ = 109437692555532.

The previous prime is 221021222220157. The next prime is 221021222220221. The reversal of 221021222220202 is 202022222120122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536459277028 + ... + 536459277439.

It is an arithmetic number, because the mean of its divisors is an integer number (41843823624252).

Almost surely, 2^{221021222220202} is an apocalyptic number.

221021222220202 is a deficient number, since it is larger than the sum of its proper divisors (113729366773814).

221021222220202 is a wasteful number, since it uses less digits than its factorization.

221021222220202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072918554572.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 221021222220202 its reverse (202022222120122), we get a palindrome (423043444340324).

The spelling of 221021222220202 in words is "two hundred twenty-one trillion, twenty-one billion, two hundred twenty-two million, two hundred twenty thousand, two hundred two".