210111212100122 has 8 divisors (see below), whose sum is σ = 320333487300372. Its totient is φ = 103333383000000.

The previous prime is 210111212100109. The next prime is 210111212100131. The reversal of 210111212100122 is 221001212111012.

It can be written as a sum of positive squares in 2 ways, for example, as 207481524999961 + 2629687100161 = 14404219^2 + 1621631^2 .

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 210111212100122.

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, 861111524879 + ... + 861111525122.

Almost surely, 2^{210111212100122} is an apocalyptic number.

210111212100122 is a deficient number, since it is larger than the sum of its proper divisors (110222275200250).

210111212100122 is a wasteful number, since it uses less digits than its factorization.

210111212100122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722223050064.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 210111212100122 its reverse (221001212111012), we get a palindrome (431112424211134).

The spelling of 210111212100122 in words is "two hundred ten trillion, one hundred eleven billion, two hundred twelve million, one hundred thousand, one hundred twenty-two".