212202113122 has 4 divisors (see below), whose sum is σ = 318303169686. Its totient is φ = 106101056560.

The previous prime is 212202113099. The next prime is 212202113143. The reversal of 212202113122 is 221311202212.

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., 199255997161 + 12946115961 = 446381^2 + 113781^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 212202113122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53050528279 + ... + 53050528282.

Almost surely, 2^212202113122 is an apocalyptic number.

212202113122 is a deficient number, since it is larger than the sum of its proper divisors (106101056564).

212202113122 is a wasteful number, since it uses less digits than its factorization.

212202113122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106101056563.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 212202113122 its reverse (221311202212), we get a palindrome (433513315334).

The spelling of 212202113122 in words is "two hundred twelve billion, two hundred two million, one hundred thirteen thousand, one hundred twenty-two".