210220100122 has 4 divisors (see below), whose sum is σ = 315330150186. Its totient is φ = 105110050060.

The previous prime is 210220100087. The next prime is 210220100137. The reversal of 210220100122 is 221001022012.

It is a happy number.

210220100122 is digitally balanced in base 3, 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., 191547150921 + 18672949201 = 437661^2 + 136649^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52555025029 + ... + 52555025032.

Almost surely, 2^210220100122 is an apocalyptic number.

210220100122 is a deficient number, since it is larger than the sum of its proper divisors (105110050064).

210220100122 is a wasteful number, since it uses less digits than its factorization.

210220100122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105110050063.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 210220100122 its reverse (221001022012), we get a palindrome (431221122134).

The spelling of 210220100122 in words is "two hundred ten billion, two hundred twenty million, one hundred thousand, one hundred twenty-two".