212210220221112 has 32 divisors (see below), whose sum is σ = 548819535056400. Its totient is φ = 68297542139904.

The previous prime is 212210220221107. The next prime is 212210220221117. The reversal of 212210220221112 is 211122022012212.

It is an interprime number because it is at equal distance from previous prime (212210220221107) and next prime (212210220221117).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212210220221117) by changing a digit.

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, 152449870153 + ... + 152449871544.

Almost surely, 2^{212210220221112} is an apocalyptic number.

It is an amenable number.

212210220221112 is an abundant number, since it is smaller than the sum of its proper divisors (336609314835288).

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

212210220221112 is a wasteful number, since it uses less digits than its factorization.

212210220221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304899741735 (or 304899741731 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 212210220221112 its reverse (211122022012212), we get a palindrome (423332242233324).

The spelling of 212210220221112 in words is "two hundred twelve trillion, two hundred ten billion, two hundred twenty million, two hundred twenty-one thousand, one hundred twelve".