1102222421 has 8 divisors (see below), whose sum is σ = 1173109464. Its totient is φ = 1032007680.

The previous prime is 1102222361. The next prime is 1102222441. The reversal of 1102222421 is 1242222011.

It can be written as a sum of positive squares in 4 ways, for example, as 27300625 + 1074921796 = 5225^2 + 32786^2 .

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-1102222421 is a prime.

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

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1102222421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102222441) 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, 164690 + ... + 171251.

It is an arithmetic number, because the mean of its divisors is an integer number (146638683).

Almost surely, 2^1102222421 is an apocalyptic number.

It is an amenable number.

1102222421 is a deficient number, since it is larger than the sum of its proper divisors (70887043).

1102222421 is a wasteful number, since it uses less digits than its factorization.

1102222421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336151.

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

The square root of 1102222421 is about 33199.7352549685. The cubic root of 1102222421 is about 1032.9748480959.

Adding to 1102222421 its reverse (1242222011), we get a palindrome (2344444432).

The spelling of 1102222421 in words is "one billion, one hundred two million, two hundred twenty-two thousand, four hundred twenty-one".