2101223302253 has 4 divisors (see below), whose sum is σ = 2101392264060. Its totient is φ = 2101054340448.

The previous prime is 2101223302183. The next prime is 2101223302267. The reversal of 2101223302253 is 3522033221012.

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

It can be written as a sum of positive squares in 2 ways, for example, as 38446582084 + 2062776720169 = 196078^2 + 1436237^2 .

It is a cyclic number.

It is not a de Polignac number, because 2101223302253 - 2⁸ = 2101223301997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101223302273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84462248 + ... + 84487121.

It is an arithmetic number, because the mean of its divisors is an integer number (525348066015).

Almost surely, 2^{2101223302253} is an apocalyptic number.

It is an amenable number.

2101223302253 is a deficient number, since it is larger than the sum of its proper divisors (168961807).

2101223302253 is a wasteful number, since it uses less digits than its factorization.

2101223302253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168961806.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 2101223302253 its reverse (3522033221012), we get a palindrome (5623256523265).

The spelling of 2101223302253 in words is "two trillion, one hundred one billion, two hundred twenty-three million, three hundred two thousand, two hundred fifty-three".