1110002001221 has 8 divisors (see below), whose sum is σ = 1182500548320. Its totient is φ = 1038911193072.

The previous prime is 1110002001217. The next prime is 1110002001223. The reversal of 1110002001221 is 1221002000111.

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

It is a cyclic number.

It is not a de Polignac number, because 1110002001221 - 2² = 1110002001217 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 (1110002001223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351933110 + ... + 351936263.

It is an arithmetic number, because the mean of its divisors is an integer number (147812568540).

Almost surely, 2^{1110002001221} is an apocalyptic number.

It is an amenable number.

1110002001221 is a deficient number, since it is larger than the sum of its proper divisors (72498547099).

1110002001221 is an equidigital number, since it uses as much as digits as its factorization.

1110002001221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703869475.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1110002001221 its reverse (1221002000111), we get a palindrome (2331004001332).

The spelling of 1110002001221 in words is "one trillion, one hundred ten billion, two million, one thousand, two hundred twenty-one".