210120221122 has 48 divisors (see below), whose sum is σ = 382667560632. Its totient is φ = 86197413120.

The previous prime is 210120221117. The next prime is 210120221131. The reversal of 210120221122 is 221122021012.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 117327485961 + 92792735161 = 342531^2 + 304619^2 .

It is a junction number, because it is equal to n+sod(n) for n = 210120221096 and 210120221105.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 280393 + ... + 706300.

Almost surely, 2^210120221122 is an apocalyptic number.

210120221122 is a deficient number, since it is larger than the sum of its proper divisors (172547339510).

210120221122 is a wasteful number, since it uses less digits than its factorization.

210120221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986803 (or 986796 counting only the distinct ones).

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

Adding to 210120221122 its reverse (221122021012), we get a palindrome (431242242134).

The spelling of 210120221122 in words is "two hundred ten billion, one hundred twenty million, two hundred twenty-one thousand, one hundred twenty-two".