1102102011221 has 4 divisors (see below), whose sum is σ = 1102176658752. Its totient is φ = 1102027363692.

The previous prime is 1102102011217. The next prime is 1102102011223. The reversal of 1102102011221 is 1221102012011.

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.

It is a cyclic number.

It is not a de Polignac number, because 1102102011221 - 2² = 1102102011217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1102102011196 and 1102102011205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102102011223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37301615 + ... + 37331148.

It is an arithmetic number, because the mean of its divisors is an integer number (275544164688).

Almost surely, 2^{1102102011221} is an apocalyptic number.

It is an amenable number.

1102102011221 is a deficient number, since it is larger than the sum of its proper divisors (74647531).

1102102011221 is an equidigital number, since it uses as much as digits as its factorization.

1102102011221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74647530.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1102102011221 its reverse (1221102012011), we get a palindrome (2323204023232).

The spelling of 1102102011221 in words is "one trillion, one hundred two billion, one hundred two million, eleven thousand, two hundred twenty-one".