2211020001 has 24 divisors (see below), whose sum is σ = 3306112680. Its totient is φ = 1422199296.

The previous prime is 2211019999. The next prime is 2211020023. The reversal of 2211020001 is 1000201122.

2211020001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 751856400 + 1459163601 = 27420^2 + 38199^2 .

It is not a de Polignac number, because 2211020001 - 2¹ = 2211019999 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 (2211020401) 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, 665721 + ... + 669033.

It is an arithmetic number, because the mean of its divisors is an integer number (137754695).

Almost surely, 2^2211020001 is an apocalyptic number.

It is an amenable number.

2211020001 is a deficient number, since it is larger than the sum of its proper divisors (1095092679).

2211020001 is a wasteful number, since it uses less digits than its factorization.

2211020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5905 (or 5902 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 2211020001 is about 47021.4844618925. The cubic root of 2211020001 is about 1302.7594247989.

Adding to 2211020001 its reverse (1000201122), we get a palindrome (3211221123).

The spelling of 2211020001 in words is "two billion, two hundred eleven million, twenty thousand, one".