2122135636 has 12 divisors (see below), whose sum is σ = 3932192628. Its totient is φ = 998652032.

The previous prime is 2122135627. The next prime is 2122135643. The reversal of 2122135636 is 6365312212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1105163536 + 1016972100 = 33244^2 + 31890^2 .

It is a super-2 number, since 2×2122135636² = 9006919315162248992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2122135598 and 2122135607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15603871 + ... + 15604006.

It is an arithmetic number, because the mean of its divisors is an integer number (327682719).

Almost surely, 2^2122135636 is an apocalyptic number.

It is an amenable number.

2122135636 is a deficient number, since it is larger than the sum of its proper divisors (1810056992).

2122135636 is a wasteful number, since it uses less digits than its factorization.

2122135636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31207898 (or 31207896 counting only the distinct ones).

The product of its digits is 12960, while the sum is 31.

The square root of 2122135636 is about 46066.6434201581. The cubic root of 2122135636 is about 1285.0628817507.

Adding to 2122135636 its reverse (6365312212), we get a palindrome (8487447848).

The spelling of 2122135636 in words is "two billion, one hundred twenty-two million, one hundred thirty-five thousand, six hundred thirty-six".