1102222222021 has 8 divisors (see below), whose sum is σ = 1105406978264. Its totient is φ = 1099039518720.

The previous prime is 1102222222009. The next prime is 1102222222051. The reversal of 1102222222021 is 1202222222011.

It can be written as a sum of positive squares in 4 ways, for example, as 661764353121 + 440457868900 = 813489^2 + 663670^2 .

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-1102222222021 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1102222222021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102222222051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 565381 + ... + 1588741.

It is an arithmetic number, because the mean of its divisors is an integer number (138175872283).

Almost surely, 2^{1102222222021} is an apocalyptic number.

It is an amenable number.

1102222222021 is a deficient number, since it is larger than the sum of its proper divisors (3184756243).

1102222222021 is a wasteful number, since it uses less digits than its factorization.

1102222222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026471.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 1102222222021 its reverse (1202222222011), we get a palindrome (2304444444032).

The spelling of 1102222222021 in words is "one trillion, one hundred two billion, two hundred twenty-two million, two hundred twenty-two thousand, twenty-one".