212220122102 has 4 divisors (see below), whose sum is σ = 318330183156. Its totient is φ = 106110061050.

The previous prime is 212220122053. The next prime is 212220122141. The reversal of 212220122102 is 201221022212.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53055030524 + ... + 53055030527.

It is an arithmetic number, because the mean of its divisors is an integer number (79582545789).

Almost surely, 2^212220122102 is an apocalyptic number.

212220122102 is a deficient number, since it is larger than the sum of its proper divisors (106110061054).

212220122102 is a wasteful number, since it uses less digits than its factorization.

212220122102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106110061053.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 212220122102 its reverse (201221022212), we get a palindrome (413441144314).

The spelling of 212220122102 in words is "two hundred twelve billion, two hundred twenty million, one hundred twenty-two thousand, one hundred two".