2101244551235 has 4 divisors (see below), whose sum is σ = 2521493461488. Its totient is φ = 1680995640984.

The previous prime is 2101244551201. The next prime is 2101244551247. The reversal of 2101244551235 is 5321554421012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2101244551235 - 2¹⁰ = 2101244550211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2101244551195 and 2101244551204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210124455119 + ... + 210124455128.

It is an arithmetic number, because the mean of its divisors is an integer number (630373365372).

Almost surely, 2^{2101244551235} is an apocalyptic number.

2101244551235 is a deficient number, since it is larger than the sum of its proper divisors (420248910253).

2101244551235 is an equidigital number, since it uses as much as digits as its factorization.

2101244551235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420248910252.

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 2101244551235 its reverse (5321554421012), we get a palindrome (7422798972247).

The spelling of 2101244551235 in words is "two trillion, one hundred one billion, two hundred forty-four million, five hundred fifty-one thousand, two hundred thirty-five".