1120210001001 has 96 divisors (see below), whose sum is σ = 2115837884160. Its totient is φ = 555085343232.

The previous prime is 1120210000993. The next prime is 1120210001021. The reversal of 1120210001001 is 1001000120211.

It is a happy number.

It is not a de Polignac number, because 1120210001001 - 2³ = 1120210000993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1120210001021) 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 95 ways as a sum of consecutive naturals, for example, 241426 + ... + 1516148.

It is an arithmetic number, because the mean of its divisors is an integer number (22039977960).

Almost surely, 2^{1120210001001} is an apocalyptic number.

It is an amenable number.

1120210001001 is a deficient number, since it is larger than the sum of its proper divisors (995627883159).

1120210001001 is a wasteful number, since it uses less digits than its factorization.

1120210001001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1274815 (or 1274812 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1120210001001 its reverse (1001000120211), we get a palindrome (2121210121212).

The spelling of 1120210001001 in words is "one trillion, one hundred twenty billion, two hundred ten million, one thousand, one".