2106021267 has 36 divisors (see below), whose sum is σ = 3600714000. Its totient is φ = 1161913536.

The previous prime is 2106021257. The next prime is 2106021283. The reversal of 2106021267 is 7621206012.

It is not a de Polignac number, because 2106021267 - 2⁸ = 2106021011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2106021267.

It is not an unprimeable number, because it can be changed into a prime (2106021227) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 33109 + ... + 72857.

Almost surely, 2^2106021267 is an apocalyptic number.

2106021267 is a deficient number, since it is larger than the sum of its proper divisors (1494692733).

2106021267 is a wasteful number, since it uses less digits than its factorization.

2106021267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39820 (or 39788 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 2106021267 is about 45891.4073329638. The cubic root of 2106021267 is about 1281.8019191498.

Adding to 2106021267 its reverse (7621206012), we get a palindrome (9727227279).

The spelling of 2106021267 in words is "two billion, one hundred six million, twenty-one thousand, two hundred sixty-seven".