2101011201 has 12 divisors (see below), whose sum is σ = 3064259328. Its totient is φ = 1387074744.

The previous prime is 2101011179. The next prime is 2101011217. The reversal of 2101011201 is 1021101012.

It is a happy number.

It is not a de Polignac number, because 2101011201 - 2⁹ = 2101010689 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 (2101011281) 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, 1132305 + ... + 1134158.

It is an arithmetic number, because the mean of its divisors is an integer number (255354944).

Almost surely, 2^2101011201 is an apocalyptic number.

It is an amenable number.

2101011201 is a deficient number, since it is larger than the sum of its proper divisors (963248127).

2101011201 is a wasteful number, since it uses less digits than its factorization.

2101011201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2266572 (or 2266569 counting only the distinct ones).

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

The square root of 2101011201 is about 45836.7887291420. The cubic root of 2101011201 is about 1280.7846753275.

Adding to 2101011201 its reverse (1021101012), we get a palindrome (3122112213).

The spelling of 2101011201 in words is "two billion, one hundred one million, eleven thousand, two hundred one".