10221222212 has 12 divisors (see below), whose sum is σ = 17918913936. Its totient is φ = 5101532520.

The previous prime is 10221222199. The next prime is 10221222227. The reversal of 10221222212 is 21222212201.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2267114 + ... + 2271617.

It is an arithmetic number, because the mean of its divisors is an integer number (1493242828).

Almost surely, 2^10221222212 is an apocalyptic number.

It is an amenable number.

10221222212 is a deficient number, since it is larger than the sum of its proper divisors (7697691724).

10221222212 is a wasteful number, since it uses less digits than its factorization.

10221222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4539298 (or 4539296 counting only the distinct ones).

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

Adding to 10221222212 its reverse (21222212201), we get a palindrome (31443434413).

The spelling of 10221222212 in words is "ten billion, two hundred twenty-one million, two hundred twenty-two thousand, two hundred twelve".