1021001222203 has 8 divisors (see below), whose sum is σ = 1025500800240. Its totient is φ = 1016505072000.

The previous prime is 1021001222107. The next prime is 1021001222221. The reversal of 1021001222203 is 3022221001201.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021001222203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021001222233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259018 + ... + 1452271.

It is an arithmetic number, because the mean of its divisors is an integer number (128187600030).

Almost surely, 2^{1021001222203} is an apocalyptic number.

1021001222203 is a deficient number, since it is larger than the sum of its proper divisors (4499578037).

1021001222203 is a wasteful number, since it uses less digits than its factorization.

1021001222203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713917.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1021001222203 its reverse (3022221001201), we get a palindrome (4043222223404).

The spelling of 1021001222203 in words is "one trillion, twenty-one billion, one million, two hundred twenty-two thousand, two hundred three".