10221121222 has 8 divisors (see below), whose sum is σ = 16511042016. Its totient is φ = 4717440552.

The previous prime is 10221121217. The next prime is 10221121241. The reversal of 10221121222 is 22212112201.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 10221121196 and 10221121205.

It is a congruent 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, 196559998 + ... + 196560049.

It is an arithmetic number, because the mean of its divisors is an integer number (2063880252).

Almost surely, 2^10221121222 is an apocalyptic number.

10221121222 is a deficient number, since it is larger than the sum of its proper divisors (6289920794).

10221121222 is a wasteful number, since it uses less digits than its factorization.

10221121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393120062.

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

Adding to 10221121222 its reverse (22212112201), we get a palindrome (32433233423).

The spelling of 10221121222 in words is "ten billion, two hundred twenty-one million, one hundred twenty-one thousand, two hundred twenty-two".