221201210022002 has 16 divisors (see below), whose sum is σ = 379299882534720. Its totient is φ = 94776066528048.

The previous prime is 221201210021983. The next prime is 221201210022007. The reversal of 221201210022002 is 200220012102122.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (221201210022007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2037614852 + ... + 2037723407.

It is an arithmetic number, because the mean of its divisors is an integer number (23706242658420).

Almost surely, 2^{221201210022002} is an apocalyptic number.

221201210022002 is a deficient number, since it is larger than the sum of its proper divisors (158098672512718).

221201210022002 is a wasteful number, since it uses less digits than its factorization.

221201210022002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4075342145.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 221201210022002 its reverse (200220012102122), we get a palindrome (421421222124124).

The spelling of 221201210022002 in words is "two hundred twenty-one trillion, two hundred one billion, two hundred ten million, twenty-two thousand, two".