1120002101001 has 24 divisors (see below), whose sum is σ = 1856966146880. Its totient is φ = 637206427296.

The previous prime is 1120002100991. The next prime is 1120002101003. The reversal of 1120002101001 is 1001012000211.

It is a happy number.

It is not a de Polignac number, because 1120002101001 - 2⁷ = 1120002100873 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1120002101003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38801755 + ... + 38830608.

Almost surely, 2^{1120002101001} is an apocalyptic number.

It is an amenable number.

1120002101001 is a deficient number, since it is larger than the sum of its proper divisors (736964045879).

1120002101001 is a wasteful number, since it uses less digits than its factorization.

1120002101001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77632605 (or 77632602 counting only the distinct ones).

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

Adding to 1120002101001 its reverse (1001012000211), we get a palindrome (2121014101212).

The spelling of 1120002101001 in words is "one trillion, one hundred twenty billion, two million, one hundred one thousand, one".