2101223533345 has 16 divisors (see below), whose sum is σ = 2525052125952. Its totient is φ = 1678590417600.

The previous prime is 2101223533327. The next prime is 2101223533349. The reversal of 2101223533345 is 5433353221012.

It is not a de Polignac number, because 2101223533345 - 2⁷ = 2101223533217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2101223533345.

It is not an unprimeable number, because it can be changed into a prime (2101223533349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20940564 + ... + 21040666.

It is an arithmetic number, because the mean of its divisors is an integer number (157815757872).

Almost surely, 2^{2101223533345} is an apocalyptic number.

It is an amenable number.

2101223533345 is a deficient number, since it is larger than the sum of its proper divisors (423828592607).

2101223533345 is a wasteful number, since it uses less digits than its factorization.

2101223533345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106032.

The product of its (nonzero) digits is 64800, while the sum is 34.

Adding to 2101223533345 its reverse (5433353221012), we get a palindrome (7534576754357).

The spelling of 2101223533345 in words is "two trillion, one hundred one billion, two hundred twenty-three million, five hundred thirty-three thousand, three hundred forty-five".