1121202000221 has 4 divisors (see below), whose sum is σ = 1121581685532. Its totient is φ = 1120822314912.

The previous prime is 1121202000143. The next prime is 1121202000223. The reversal of 1121202000221 is 1220002021211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 796581240196 + 324620760025 = 892514^2 + 569755^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121202000221 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 = 1121202000196 and 1121202000205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121202000223) 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, 189838226 + ... + 189844131.

It is an arithmetic number, because the mean of its divisors is an integer number (280395421383).

Almost surely, 2^{1121202000221} is an apocalyptic number.

It is an amenable number.

1121202000221 is a deficient number, since it is larger than the sum of its proper divisors (379685311).

1121202000221 is an equidigital number, since it uses as much as digits as its factorization.

1121202000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379685310.

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

Adding to 1121202000221 its reverse (1220002021211), we get a palindrome (2341204021432).

The spelling of 1121202000221 in words is "one trillion, one hundred twenty-one billion, two hundred two million, two hundred twenty-one", and thus it is an aban number.