212221121020102 has 8 divisors (see below), whose sum is σ = 318339927939816. Its totient is φ = 106107811706832.

The previous prime is 212221121020093. The next prime is 212221121020157. The reversal of 212221121020102 is 201020121122212.

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

It is a self number, because there is not a number n which added to its sum of digits gives 212221121020102.

It is a congruent number.

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, 1374305103 + ... + 1374459514.

It is an arithmetic number, because the mean of its divisors is an integer number (39792490992477).

Almost surely, 2^{212221121020102} is an apocalyptic number.

212221121020102 is a deficient number, since it is larger than the sum of its proper divisors (106118806919714).

212221121020102 is a wasteful number, since it uses less digits than its factorization.

212221121020102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2748803222.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 212221121020102 its reverse (201020121122212), we get a palindrome (413241242142314).

The spelling of 212221121020102 in words is "two hundred twelve trillion, two hundred twenty-one billion, one hundred twenty-one million, twenty thousand, one hundred two".