2101320122 has 24 divisors (see below), whose sum is σ = 3668378868. Its totient is φ = 898958720.

The previous prime is 2101320119. The next prime is 2101320149. The reversal of 2101320122 is 2210231012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1896515401 + 204804721 = 43549^2 + 14311^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2101320097 and 2101320106.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 251273 + ... + 259500.

Almost surely, 2^2101320122 is an apocalyptic number.

2101320122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2101320122 is a deficient number, since it is larger than the sum of its proper divisors (1567058746).

2101320122 is a wasteful number, since it uses less digits than its factorization.

2101320122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510814 (or 510803 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2101320122 is about 45840.1583985047. The cubic root of 2101320122 is about 1280.8474454026.

Adding to 2101320122 its reverse (2210231012), we get a palindrome (4311551134).

It can be divided in two parts, 2101 and 320122, that added together give a palindrome (322223).

The spelling of 2101320122 in words is "two billion, one hundred one million, three hundred twenty thousand, one hundred twenty-two".