212200211122 has 4 divisors (see below), whose sum is σ = 318300316686. Its totient is φ = 106100105560.

The previous prime is 212200211063. The next prime is 212200211141. The reversal of 212200211122 is 221112002212.

It is a happy number.

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., 198836619921 + 13363591201 = 445911^2 + 115601^2 .

It is a junction number, because it is equal to n+sod(n) for n = 212200211096 and 212200211105.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53050052779 + ... + 53050052782.

Almost surely, 2^212200211122 is an apocalyptic number.

212200211122 is a deficient number, since it is larger than the sum of its proper divisors (106100105564).

212200211122 is a wasteful number, since it uses less digits than its factorization.

212200211122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106100105563.

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

Adding to 212200211122 its reverse (221112002212), we get a palindrome (433312213334).

The spelling of 212200211122 in words is "two hundred twelve billion, two hundred million, two hundred eleven thousand, one hundred twenty-two".