212000121122 has 4 divisors (see below), whose sum is σ = 318000181686. Its totient is φ = 106000060560.

The previous prime is 212000121121. The next prime is 212000121127. The reversal of 212000121122 is 221121000212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 178507095001 + 33493026121 = 422501^2 + 183011^2 .

It is a junction number, because it is equal to n+sod(n) for n = 212000121097 and 212000121106.

It is not an unprimeable number, because it can be changed into a prime (212000121121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53000030279 + ... + 53000030282.

Almost surely, 2^212000121122 is an apocalyptic number.

212000121122 is a deficient number, since it is larger than the sum of its proper divisors (106000060564).

212000121122 is a wasteful number, since it uses less digits than its factorization.

212000121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106000060563.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 212000121122 its reverse (221121000212), we get a palindrome (433121121334).

The spelling of 212000121122 in words is "two hundred twelve billion, one hundred twenty-one thousand, one hundred twenty-two".