1120002021221 has 4 divisors (see below), whose sum is σ = 1120007494272. Its totient is φ = 1119996548172.

The previous prime is 1120002021157. The next prime is 1120002021239. The reversal of 1120002021221 is 1221202000211.

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 1120002021221 - 2⁶ = 1120002021157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1120002021196 and 1120002021205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120002023221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2417141 + ... + 2842986.

It is an arithmetic number, because the mean of its divisors is an integer number (280001873568).

Almost surely, 2^{1120002021221} is an apocalyptic number.

It is an amenable number.

1120002021221 is a deficient number, since it is larger than the sum of its proper divisors (5473051).

1120002021221 is an equidigital number, since it uses as much as digits as its factorization.

1120002021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5473050.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1120002021221 its reverse (1221202000211), we get a palindrome (2341204021432).

The spelling of 1120002021221 in words is "one trillion, one hundred twenty billion, two million, twenty-one thousand, two hundred twenty-one".