2120212312133 has 4 divisors (see below), whose sum is σ = 2120257795488. Its totient is φ = 2120166828780.

The previous prime is 2120212312123. The next prime is 2120212312147. The reversal of 2120212312133 is 3312132120212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2120212312133 - 2¹⁰ = 2120212311109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2120212312099 and 2120212312108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120212312123) 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, 22671683 + ... + 22765008.

It is an arithmetic number, because the mean of its divisors is an integer number (530064448872).

Almost surely, 2^{2120212312133} is an apocalyptic number.

It is an amenable number.

2120212312133 is a deficient number, since it is larger than the sum of its proper divisors (45483355).

2120212312133 is an equidigital number, since it uses as much as digits as its factorization.

2120212312133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45483354.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2120212312133 its reverse (3312132120212), we get a palindrome (5432344432345).

The spelling of 2120212312133 in words is "two trillion, one hundred twenty billion, two hundred twelve million, three hundred twelve thousand, one hundred thirty-three".