210020121122 has 16 divisors (see below), whose sum is σ = 375688167552. Its totient is φ = 86095204800.

The previous prime is 210020121013. The next prime is 210020121131. The reversal of 210020121122 is 221121020012.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 210020121097 and 210020121106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326117879 + ... + 326118522.

It is an arithmetic number, because the mean of its divisors is an integer number (23480510472).

Almost surely, 2^210020121122 is an apocalyptic number.

210020121122 is a deficient number, since it is larger than the sum of its proper divisors (165668046430).

210020121122 is a wasteful number, since it uses less digits than its factorization.

210020121122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652236433.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 210020121122 its reverse (221121020012), we get a palindrome (431141141134).

The spelling of 210020121122 in words is "two hundred ten billion, twenty million, one hundred twenty-one thousand, one hundred twenty-two".