2121012223303 has 4 divisors (see below), whose sum is σ = 2156961583080. Its totient is φ = 2085062863528.

The previous prime is 2121012223259. The next prime is 2121012223307. The reversal of 2121012223303 is 3033222101212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2121012223303 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 (2121012223307) 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, 17974679800 + ... + 17974679917.

It is an arithmetic number, because the mean of its divisors is an integer number (539240395770).

Almost surely, 2^{2121012223303} is an apocalyptic number.

2121012223303 is a deficient number, since it is larger than the sum of its proper divisors (35949359777).

2121012223303 is an equidigital number, since it uses as much as digits as its factorization.

2121012223303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35949359776.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 2121012223303 its reverse (3033222101212), we get a palindrome (5154234324515).

The spelling of 2121012223303 in words is "two trillion, one hundred twenty-one billion, twelve million, two hundred twenty-three thousand, three hundred three".