221002101220012 has 24 divisors (see below), whose sum is σ = 442021521747456. Its totient is φ = 94711474957008.

The previous prime is 221002101219971. The next prime is 221002101220091. The reversal of 221002101220012 is 210022101200122.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153909268 + ... + 155338555.

It is an arithmetic number, because the mean of its divisors is an integer number (18417563406144).

Almost surely, 2^{221002101220012} is an apocalyptic number.

It is an amenable number.

221002101220012 is an abundant number, since it is smaller than the sum of its proper divisors (221019420527444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221002101220012 is a wasteful number, since it uses less digits than its factorization.

221002101220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309273357 (or 309273355 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221002101220012 its reverse (210022101200122), we get a palindrome (431024202420134).

The spelling of 221002101220012 in words is "two hundred twenty-one trillion, two billion, one hundred one million, two hundred twenty thousand, twelve".