1121202147 has 32 divisors (see below), whose sum is σ = 1674953280. Its totient is φ = 662376960.

The previous prime is 1121202073. The next prime is 1121202151. The reversal of 1121202147 is 7412021211.

It is not a de Polignac number, because 1121202147 - 2¹⁸ = 1120940003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1121202647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 201973 + ... + 207449.

It is an arithmetic number, because the mean of its divisors is an integer number (52342290).

Almost surely, 2^1121202147 is an apocalyptic number.

1121202147 is a deficient number, since it is larger than the sum of its proper divisors (553751133).

1121202147 is a wasteful number, since it uses less digits than its factorization.

1121202147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5703.

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 1121202147 is about 33484.3567505783. The cubic root of 1121202147 is about 1038.8702435377.

Adding to 1121202147 its reverse (7412021211), we get a palindrome (8533223358).

The spelling of 1121202147 in words is "one billion, one hundred twenty-one million, two hundred two thousand, one hundred forty-seven".