1002211121222 has 8 divisors (see below), whose sum is σ = 1591747074936. Its totient is φ = 471628762912.

The previous prime is 1002211121203. The next prime is 1002211121227. The reversal of 1002211121222 is 2221211122001.

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

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 1002211121222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002211121227) 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, 14738398808 + ... + 14738398875.

It is an arithmetic number, because the mean of its divisors is an integer number (198968384367).

Almost surely, 2^{1002211121222} is an apocalyptic number.

1002211121222 is a deficient number, since it is larger than the sum of its proper divisors (589535953714).

1002211121222 is a wasteful number, since it uses less digits than its factorization.

1002211121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29476797702.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1002211121222 its reverse (2221211122001), we get a palindrome (3223422243223).

The spelling of 1002211121222 in words is "one trillion, two billion, two hundred eleven million, one hundred twenty-one thousand, two hundred twenty-two".