212200112122 has 8 divisors (see below), whose sum is σ = 318416301972. Its totient is φ = 106061344800.

The previous prime is 212200112101. The next prime is 212200112149. The reversal of 212200112122 is 221211002212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 209992146001 + 2207966121 = 458249^2 + 46989^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 212200112096 and 212200112105.

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, 19348779 + ... + 19359742.

Almost surely, 2^212200112122 is an apocalyptic number.

212200112122 is a deficient number, since it is larger than the sum of its proper divisors (106216189850).

212200112122 is a wasteful number, since it uses less digits than its factorization.

212200112122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38711264.

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

Adding to 212200112122 its reverse (221211002212), we get a palindrome (433411114334).

The spelling of 212200112122 in words is "two hundred twelve billion, two hundred million, one hundred twelve thousand, one hundred twenty-two".