1120143442221 has 12 divisors (see below), whose sum is σ = 1618014226972. Its totient is φ = 746748792576.

The previous prime is 1120143442217. The next prime is 1120143442261. The reversal of 1120143442221 is 1222443410211.

1120143442221 is a `hidden beast` number, since 1 + 1 + 2 + 0 + 1 + 434 + 4 + 2 + 221 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 386808119721 + 733335322500 = 621939^2 + 856350^2 .

It is not a de Polignac number, because 1120143442221 - 2² = 1120143442217 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 (1120143442261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 586186 + ... + 1607451.

Almost surely, 2^{1120143442221} is an apocalyptic number.

It is an amenable number.

1120143442221 is a deficient number, since it is larger than the sum of its proper divisors (497870784751).

1120143442221 is a wasteful number, since it uses less digits than its factorization.

1120143442221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2250380 (or 2250377 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 1120143442221 its reverse (1222443410211), we get a palindrome (2342586852432).

The spelling of 1120143442221 in words is "one trillion, one hundred twenty billion, one hundred forty-three million, four hundred forty-two thousand, two hundred twenty-one".