221210210220002 has 32 divisors (see below), whose sum is σ = 355337609702400. Its totient is φ = 102975775534800.

The previous prime is 221210210219917. The next prime is 221210210220007. The reversal of 221210210220002 is 200022012012122.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (221210210220007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130978352 + ... + 132656507.

It is an arithmetic number, because the mean of its divisors is an integer number (11104300303200).

Almost surely, 2^{221210210220002} is an apocalyptic number.

221210210220002 is a deficient number, since it is larger than the sum of its proper divisors (134127399482398).

221210210220002 is a wasteful number, since it uses less digits than its factorization.

221210210220002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263635262.

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

Adding to 221210210220002 its reverse (200022012012122), we get a palindrome (421232222232124).

The spelling of 221210210220002 in words is "two hundred twenty-one trillion, two hundred ten billion, two hundred ten million, two hundred twenty thousand, two".