10212122222 has 8 divisors (see below), whose sum is σ = 15984191376. Its totient is φ = 4884058432.

The previous prime is 10212122131. The next prime is 10212122227. The reversal of 10212122222 is 22222121201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 10212122222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212122227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111001283 + ... + 111001374.

It is an arithmetic number, because the mean of its divisors is an integer number (1998023922).

Almost surely, 2^10212122222 is an apocalyptic number.

10212122222 is a deficient number, since it is larger than the sum of its proper divisors (5772069154).

10212122222 is a wasteful number, since it uses less digits than its factorization.

10212122222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222002682.

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

Adding to 10212122222 its reverse (22222121201), we get a palindrome (32434243423).

The spelling of 10212122222 in words is "ten billion, two hundred twelve million, one hundred twenty-two thousand, two hundred twenty-two".