3021200112121 has 2 divisors, whose sum is σ = 3021200112122. Its totient is φ = 3021200112120.

The previous prime is 3021200112109. The next prime is 3021200112157. The reversal of 3021200112121 is 1212110021203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1660386873600 + 1360813238521 = 1288560^2 + 1166539^2 .

It is a cyclic number.

It is not a de Polignac number, because 3021200112121 - 2¹⁵ = 3021200079353 is a prime.

It is a super-2 number, since 2×3021200112121² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3021200112095 and 3021200112104.

It is not a weakly prime, because it can be changed into another prime (3021200118121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1510600056060 + 1510600056061.

It is an arithmetic number, because the mean of its divisors is an integer number (1510600056061).

Almost surely, 2^{3021200112121} is an apocalyptic number.

It is an amenable number.

3021200112121 is a deficient number, since it is larger than the sum of its proper divisors (1).

3021200112121 is an equidigital number, since it uses as much as digits as its factorization.

3021200112121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 3021200112121 its reverse (1212110021203), we get a palindrome (4233310133324).

The spelling of 3021200112121 in words is "three trillion, twenty-one billion, two hundred million, one hundred twelve thousand, one hundred twenty-one".