1120010021001 has 12 divisors (see below), whose sum is σ = 1617848019060. Its totient is φ = 746647608960.

The previous prime is 1120010020981. The next prime is 1120010021023. The reversal of 1120010021001 is 1001200100211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 602331210000 + 517678811001 = 776100^2 + 719499^2 .

It is not a de Polignac number, because 1120010021001 - 2²² = 1120005826697 is a prime.

It is a super-2 number, since 2×1120010021001² (a number of 25 digits) contains 22 as substring.

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 (1120010091001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1867380 + ... + 2393141.

It is an arithmetic number, because the mean of its divisors is an integer number (134820668255).

Almost surely, 2^{1120010021001} is an apocalyptic number.

It is an amenable number.

1120010021001 is a deficient number, since it is larger than the sum of its proper divisors (497837998059).

1120010021001 is a wasteful number, since it uses less digits than its factorization.

1120010021001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4289736 (or 4289733 counting only the distinct ones).

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

Adding to 1120010021001 its reverse (1001200100211), we get a palindrome (2121210121212).

The spelling of 1120010021001 in words is "one trillion, one hundred twenty billion, ten million, twenty-one thousand, one".