210112200020122 has 4 divisors (see below), whose sum is σ = 315168300030186. Its totient is φ = 105056100010060.

The previous prime is 210112200020113. The next prime is 210112200020123. The reversal of 210112200020122 is 221020002211012.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 136593939650281 + 73518260369841 = 11687341^2 + 8574279^2 .

It is a junction number, because it is equal to n+sod(n) for n = 210112200020096 and 210112200020105.

It is not an unprimeable number, because it can be changed into a prime (210112200020123) 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 as a sum of consecutive naturals, namely, 52528050005029 + ... + 52528050005032.

Almost surely, 2^{210112200020122} is an apocalyptic number.

210112200020122 is a deficient number, since it is larger than the sum of its proper divisors (105056100010064).

210112200020122 is a wasteful number, since it uses less digits than its factorization.

210112200020122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105056100010063.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 210112200020122 its reverse (221020002211012), we get a palindrome (431132202231134).

The spelling of 210112200020122 in words is "two hundred ten trillion, one hundred twelve billion, two hundred million, twenty thousand, one hundred twenty-two".