212122101100112 has 20 divisors (see below), whose sum is σ = 469698938150496. Its totient is φ = 90909471900000.

The previous prime is 212122101100081. The next prime is 212122101100139. The reversal of 212122101100112 is 211001101221212.

It is a super-2 number, since 2×212122101100112² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 946973665514 + ... + 946973665737.

Almost surely, 2^{212122101100112} is an apocalyptic number.

It is an amenable number.

212122101100112 is an abundant number, since it is smaller than the sum of its proper divisors (257576837050384).

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

212122101100112 is a wasteful number, since it uses less digits than its factorization.

212122101100112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1893947331266 (or 1893947331260 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 212122101100112 its reverse (211001101221212), we get a palindrome (423123202321324).

The spelling of 212122101100112 in words is "two hundred twelve trillion, one hundred twenty-two billion, one hundred one million, one hundred thousand, one hundred twelve".