1110022001221 has 16 divisors (see below), whose sum is σ = 1304367926400. Its totient is φ = 944184433920.

The previous prime is 1110022001183. The next prime is 1110022001239. The reversal of 1110022001221 is 1221002200111.

It is not a de Polignac number, because 1110022001221 - 2²⁹ = 1109485130309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1110022001021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12307036 + ... + 12396901.

It is an arithmetic number, because the mean of its divisors is an integer number (81522995400).

Almost surely, 2^{1110022001221} is an apocalyptic number.

It is an amenable number.

1110022001221 is a deficient number, since it is larger than the sum of its proper divisors (194345925179).

1110022001221 is an equidigital number, since it uses as much as digits as its factorization.

1110022001221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24704089 (or 24704075 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1110022001221 its reverse (1221002200111), we get a palindrome (2331024201332).

The spelling of 1110022001221 in words is "one trillion, one hundred ten billion, twenty-two million, one thousand, two hundred twenty-one".