210120212222101 has 8 divisors (see below), whose sum is σ = 222481505456280. Its totient is φ = 197759061293568.

The previous prime is 210120212222069. The next prime is 210120212222153. The reversal of 210120212222101 is 101222212021012.

It can be written as a sum of positive squares in 4 ways, for example, as 42536157900625 + 167584054321476 = 6521975^2 + 12945426^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 210120212222101 - 2⁵ = 210120212222069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210120212222191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32529006 + ... + 38449663.

It is an arithmetic number, because the mean of its divisors is an integer number (27810188182035).

Almost surely, 2^{210120212222101} is an apocalyptic number.

It is an amenable number.

210120212222101 is a deficient number, since it is larger than the sum of its proper divisors (12361293234179).

210120212222101 is a wasteful number, since it uses less digits than its factorization.

210120212222101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71152823.

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

Adding to 210120212222101 its reverse (101222212021012), we get a palindrome (311342424243113).

The spelling of 210120212222101 in words is "two hundred ten trillion, one hundred twenty billion, two hundred twelve million, two hundred twenty-two thousand, one hundred one".