1120012221 has 4 divisors (see below), whose sum is σ = 1493349632. Its totient is φ = 746674812.

The previous prime is 1120012217. The next prime is 1120012259. The reversal of 1120012221 is 1222100211.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1222100211 = 3 ⋅407366737.

It is not a de Polignac number, because 1120012221 - 2² = 1120012217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1120012197 and 1120012206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120012261) 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, 186668701 + ... + 186668706.

It is an arithmetic number, because the mean of its divisors is an integer number (373337408).

Almost surely, 2^1120012221 is an apocalyptic number.

It is an amenable number.

1120012221 is a deficient number, since it is larger than the sum of its proper divisors (373337411).

1120012221 is an equidigital number, since it uses as much as digits as its factorization.

1120012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373337410.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1120012221 is about 33466.5836469754. The cubic root of 1120012221 is about 1038.5025975869.

Adding to 1120012221 its reverse (1222100211), we get a palindrome (2342112432).

The spelling of 1120012221 in words is "one billion, one hundred twenty million, twelve thousand, two hundred twenty-one".