1302000212021 has 2 divisors, whose sum is σ = 1302000212022. Its totient is φ = 1302000212020.

The previous prime is 1302000212011. The next prime is 1302000212087. The reversal of 1302000212021 is 1202120002031.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 734560414225 + 567439797796 = 857065^2 + 753286^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1302000212021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1302000211987 and 1302000212005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1302000212011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651000106010 + 651000106011.

It is an arithmetic number, because the mean of its divisors is an integer number (651000106011).

Almost surely, 2^{1302000212021} is an apocalyptic number.

It is an amenable number.

1302000212021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1302000212021 is an equidigital number, since it uses as much as digits as its factorization.

1302000212021 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 14.

Adding to 1302000212021 its reverse (1202120002031), we get a palindrome (2504120214052).

The spelling of 1302000212021 in words is "one trillion, three hundred two billion, two hundred twelve thousand, twenty-one".