101212102021013 has 2 divisors, whose sum is σ = 101212102021014. Its totient is φ = 101212102021012.

The previous prime is 101212102020983. The next prime is 101212102021073. The reversal of 101212102021013 is 310120201212101.

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., 100239002635249 + 973099385764 = 10011943^2 + 986458^2 .

It is a cyclic number.

It is not a de Polignac number, because 101212102021013 - 2²² = 101212097826709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101212102020982 and 101212102021000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101212102021073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50606051010506 + 50606051010507.

It is an arithmetic number, because the mean of its divisors is an integer number (50606051010507).

Almost surely, 2^{101212102021013} is an apocalyptic number.

It is an amenable number.

101212102021013 is a deficient number, since it is larger than the sum of its proper divisors (1).

101212102021013 is an equidigital number, since it uses as much as digits as its factorization.

101212102021013 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 17.

Adding to 101212102021013 its reverse (310120201212101), we get a palindrome (411332303233114).

The spelling of 101212102021013 in words is "one hundred one trillion, two hundred twelve billion, one hundred two million, twenty-one thousand, thirteen".