212110202122 has 64 divisors (see below), whose sum is σ = 396210528000. Its totient is φ = 82922273280.

The previous prime is 212110202041. The next prime is 212110202141. The reversal of 212110202122 is 221202011212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 212110202096 and 212110202105.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48770004 + ... + 48774352.

It is an arithmetic number, because the mean of its divisors is an integer number (6190789500).

Almost surely, 2^212110202122 is an apocalyptic number.

212110202122 is a deficient number, since it is larger than the sum of its proper divisors (184100325878).

212110202122 is a wasteful number, since it uses less digits than its factorization.

212110202122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7471.

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

Adding to 212110202122 its reverse (221202011212), we get a palindrome (433312213334).

The spelling of 212110202122 in words is "two hundred twelve billion, one hundred ten million, two hundred two thousand, one hundred twenty-two".