210111002202122 has 24 divisors (see below), whose sum is σ = 366683069771460. Its totient is φ = 90032636379840.

The previous prime is 210111002202121. The next prime is 210111002202149. The reversal of 210111002202122 is 221202200111012.

It can be written as a sum of positive squares in 2 ways, for example, as 142912963253641 + 67198038948481 = 11954621^2 + 8197441^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 210111002202122.

It is not an unprimeable number, because it can be changed into a prime (210111002202121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 177215579 + ... + 178397262.

Almost surely, 2^{210111002202122} is an apocalyptic number.

210111002202122 is a deficient number, since it is larger than the sum of its proper divisors (156572067569338).

210111002202122 is a wasteful number, since it uses less digits than its factorization.

210111002202122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355618886 (or 355618879 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 210111002202122 its reverse (221202200111012), we get a palindrome (431313202313134).

The spelling of 210111002202122 in words is "two hundred ten trillion, one hundred eleven billion, two million, two hundred two thousand, one hundred twenty-two".