1102022221 has 4 divisors (see below), whose sum is σ = 1102093344. Its totient is φ = 1101951100.

The previous prime is 1102022219. The next prime is 1102022281. The reversal of 1102022221 is 1222202011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1102022221 - 2¹ = 1102022219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102022281) 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, 1345 + ... + 46966.

It is an arithmetic number, because the mean of its divisors is an integer number (275523336).

Almost surely, 2^1102022221 is an apocalyptic number.

It is an amenable number.

1102022221 is a deficient number, since it is larger than the sum of its proper divisors (71123).

1102022221 is an equidigital number, since it uses as much as digits as its factorization.

1102022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71122.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1102022221 is about 33196.7200337624. The cubic root of 1102022221 is about 1032.9123035246.

Adding to 1102022221 its reverse (1222202011), we get a palindrome (2324224232).

The spelling of 1102022221 in words is "one billion, one hundred two million, twenty-two thousand, two hundred twenty-one".