3211212121123 has 2 divisors, whose sum is σ = 3211212121124. Its totient is φ = 3211212121122.

The previous prime is 3211212121121. The next prime is 3211212121151.

It is a happy number.

3211212121123 is nontrivially palindromic in base 10.

It is a weak prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 3211212121123 - 2¹ = 3211212121121 is a prime.

It is a super-2 number, since 2×3211212121123² (a number of 26 digits) contains 22 as substring.

Together with 3211212121121, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 3211212121094 and 3211212121103.

It is not a weakly prime, because it can be changed into another prime (3211212121121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1605606060561 + 1605606060562.

It is an arithmetic number, because the mean of its divisors is an integer number (1605606060562).

Almost surely, 2^{3211212121123} is an apocalyptic number.

3211212121123 is a deficient number, since it is larger than the sum of its proper divisors (1).

3211212121123 is an equidigital number, since it uses as much as digits as its factorization.

3211212121123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 22.

The spelling of 3211212121123 in words is "three trillion, two hundred eleven billion, two hundred twelve million, one hundred twenty-one thousand, one hundred twenty-three".