2101207922 has 16 divisors (see below), whose sum is σ = 3640596192. Its totient is φ = 898912320.

The previous prime is 2101207921. The next prime is 2101207937. The reversal of 2101207922 is 2297021012.

It is a junction number, because it is equal to n+sod(n) for n = 2101207891 and 2101207900.

It is not an unprimeable number, because it can be changed into a prime (2101207921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2808728 + ... + 2809475.

It is an arithmetic number, because the mean of its divisors is an integer number (227537262).

Almost surely, 2^2101207922 is an apocalyptic number.

2101207922 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2101207922 is a deficient number, since it is larger than the sum of its proper divisors (1539388270).

2101207922 is a wasteful number, since it uses less digits than its factorization.

2101207922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5618233.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 2101207922 is about 45838.9345644071. The cubic root of 2101207922 is about 1280.8246480446.

Adding to 2101207922 its reverse (2297021012), we get a palindrome (4398228934).

The spelling of 2101207922 in words is "two billion, one hundred one million, two hundred seven thousand, nine hundred twenty-two".