1001221102 has 16 divisors (see below), whose sum is σ = 1718402400. Its totient is φ = 428588928.

The previous prime is 1001221097. The next prime is 1001221127. The reversal of 1001221102 is 2011221001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29727 + ... + 53722.

It is an arithmetic number, because the mean of its divisors is an integer number (107400150).

Almost surely, 2^1001221102 is an apocalyptic number.

1001221102 is a deficient number, since it is larger than the sum of its proper divisors (717181298).

1001221102 is an equidigital number, since it uses as much as digits as its factorization.

1001221102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84315.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1001221102 is about 31642.0780291055. The cubic root of 1001221102 is about 1000.4068684356.

Adding to 1001221102 its reverse (2011221001), we get a palindrome (3012442103).

The spelling of 1001221102 in words is "one billion, one million, two hundred twenty-one thousand, one hundred two".