210220221112 has 32 divisors (see below), whose sum is σ = 430018729200. Its totient is φ = 95549574400.

The previous prime is 210220221109. The next prime is 210220221131. The reversal of 210220221112 is 211122022012.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1973964 + ... + 2077732.

Almost surely, 2^210220221112 is an apocalyptic number.

210220221112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

210220221112 is an abundant number, since it is smaller than the sum of its proper divisors (219798508088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210220221112 is a wasteful number, since it uses less digits than its factorization.

210220221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126807 (or 126803 counting only the distinct ones).

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

Adding to 210220221112 its reverse (211122022012), we get a palindrome (421342243124).

Subtracting 210220221112 from its reverse (211122022012), we obtain a square (901800900 = 30030²).

The spelling of 210220221112 in words is "two hundred ten billion, two hundred twenty million, two hundred twenty-one thousand, one hundred twelve".