1121444770 has 16 divisors (see below), whose sum is σ = 2036466360. Its totient is φ = 444607744.

The previous prime is 1121444759. The next prime is 1121444777. The reversal of 1121444770 is 774441211.

It can be written as a sum of positive squares in 4 ways, for example, as 735440161 + 386004609 = 27119^2 + 19647^2 .

It is not an unprimeable number, because it can be changed into a prime (1121444777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 495085 + ... + 497344.

Almost surely, 2^1121444770 is an apocalyptic number.

1121444770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121444770 is a deficient number, since it is larger than the sum of its proper divisors (915021590).

1121444770 is a wasteful number, since it uses less digits than its factorization.

1121444770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992549.

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 1121444770 is about 33487.9794851824. The cubic root of 1121444770 is about 1038.9451737177.

Adding to 1121444770 its reverse (774441211), we get a palindrome (1895885981).

The spelling of 1121444770 in words is "one billion, one hundred twenty-one million, four hundred forty-four thousand, seven hundred seventy".