1022000111001 has 20 divisors (see below), whose sum is σ = 1533026372724. Its totient is φ = 678506284800.

The previous prime is 1022000110981. The next prime is 1022000111009. The reversal of 1022000111001 is 1001110002201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 810988501401 + 211011609600 = 900549^2 + 459360^2 .

It is not a de Polignac number, because 1022000111001 - 2⁵ = 1022000110969 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (1022000111009) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 26157420 + ... + 26196461.

Almost surely, 2^{1022000111001} is an apocalyptic number.

It is an amenable number.

1022000111001 is a deficient number, since it is larger than the sum of its proper divisors (511026261723).

1022000111001 is an equidigital number, since it uses as much as digits as its factorization.

1022000111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52354134 (or 52354125 counting only the distinct ones).

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

Adding to 1022000111001 its reverse (1001110002201), we get a palindrome (2023110113202).

The spelling of 1022000111001 in words is "one trillion, twenty-two billion, one hundred eleven thousand, one".