210122211111122 has 4 divisors (see below), whose sum is σ = 315183316666686. Its totient is φ = 105061105555560.

The previous prime is 210122211111119. The next prime is 210122211111143. The reversal of 210122211111122 is 221111112221012.

It is a happy number.

210122211111122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 210014035243321 + 108175867801 = 14491861^2 + 328901^2 .

It is a junction number, because it is equal to n+sod(n) for n = 210122211111094 and 210122211111103.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52530552777779 + ... + 52530552777782.

Almost surely, 2^{210122211111122} is an apocalyptic number.

210122211111122 is a deficient number, since it is larger than the sum of its proper divisors (105061105555564).

210122211111122 is a wasteful number, since it uses less digits than its factorization.

210122211111122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105061105555563.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 210122211111122 its reverse (221111112221012), we get a palindrome (431233323332134).

It can be divided in two parts, 21012 and 2211111122, that multiplied together give a palindrome (46459866895464).

The spelling of 210122211111122 in words is "two hundred ten trillion, one hundred twenty-two billion, two hundred eleven million, one hundred eleven thousand, one hundred twenty-two".