210220121122222 has 4 divisors (see below), whose sum is σ = 315330181683336. Its totient is φ = 105110060561110.

The previous prime is 210220121122177. The next prime is 210220121122241. The reversal of 210220121122222 is 222221121022012.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 210220121122193 and 210220121122202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52555030280554 + ... + 52555030280557.

It is an arithmetic number, because the mean of its divisors is an integer number (78832545420834).

Almost surely, 2^{210220121122222} is an apocalyptic number.

210220121122222 is a deficient number, since it is larger than the sum of its proper divisors (105110060561114).

210220121122222 is a wasteful number, since it uses less digits than its factorization.

210220121122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105110060561113.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 210220121122222 its reverse (222221121022012), we get a palindrome (432441242144234).

The spelling of 210220121122222 in words is "two hundred ten trillion, two hundred twenty billion, one hundred twenty-one million, one hundred twenty-two thousand, two hundred twenty-two".