212210201222112 has 48 divisors (see below), whose sum is σ = 557065509939792. Its totient is φ = 70734990028800.

The previous prime is 212210201222051. The next prime is 212210201222143. The reversal of 212210201222112 is 211222102012212.

It is a tau number, because it is divible by the number of its divisors (48).

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, 23327889 + ... + 31122512.

It is an arithmetic number, because the mean of its divisors is an integer number (11605531457079).

Almost surely, 2^{212210201222112} is an apocalyptic number.

It is an amenable number.

212210201222112 is an abundant number, since it is smaller than the sum of its proper divisors (344855308717680).

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

212210201222112 is a wasteful number, since it uses less digits than its factorization.

212210201222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54491011 (or 54491003 counting only the distinct ones).

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

Adding to 212210201222112 its reverse (211222102012212), we get a palindrome (423432303234324).

The spelling of 212210201222112 in words is "two hundred twelve trillion, two hundred ten billion, two hundred one million, two hundred twenty-two thousand, one hundred twelve".