1001221106 has 8 divisors (see below), whose sum is σ = 1510222320. Its totient is φ = 497813668.

The previous prime is 1001221097. The next prime is 1001221127. The reversal of 1001221106 is 6011221001.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1397996 + ... + 1398711.

It is an arithmetic number, because the mean of its divisors is an integer number (188777790).

Almost surely, 2^1001221106 is an apocalyptic number.

1001221106 is a deficient number, since it is larger than the sum of its proper divisors (509001214).

1001221106 is a wasteful number, since it uses less digits than its factorization.

1001221106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2796888.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1001221106 is about 31642.0780923125. The cubic root of 1001221106 is about 1000.4068697679.

Adding to 1001221106 its reverse (6011221001), we get a palindrome (7012442107).

The spelling of 1001221106 in words is "one billion, one million, two hundred twenty-one thousand, one hundred six".