1121251002 has 16 divisors (see below), whose sum is σ = 2246436192. Its totient is φ = 373094640.

The previous prime is 1121250979. The next prime is 1121251003. The reversal of 1121251002 is 2001521211.

It is not an unprimeable number, because it can be changed into a prime (1121251003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160213 + ... + 167064.

It is an arithmetic number, because the mean of its divisors is an integer number (140402262).

Almost surely, 2^1121251002 is an apocalyptic number.

1121251002 is an abundant number, since it is smaller than the sum of its proper divisors (1125185190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1121251002 is a wasteful number, since it uses less digits than its factorization.

1121251002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327853.

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 1121251002 is about 33485.0862623945. The cubic root of 1121251002 is about 1038.8853324815.

Adding to 1121251002 its reverse (2001521211), we get a palindrome (3122772213).

The spelling of 1121251002 in words is "one billion, one hundred twenty-one million, two hundred fifty-one thousand, two".