1012202052605 has 4 divisors (see below), whose sum is σ = 1214642463132. Its totient is φ = 809761642080.

The previous prime is 1012202052551. The next prime is 1012202052613. The reversal of 1012202052605 is 5062502022101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 734344449721 + 277857602884 = 856939^2 + 527122^2 .

It is not a de Polignac number, because 1012202052605 - 2¹² = 1012202048509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101220205256 + ... + 101220205265.

It is an arithmetic number, because the mean of its divisors is an integer number (303660615783).

Almost surely, 2^{1012202052605} is an apocalyptic number.

It is an amenable number.

1012202052605 is a deficient number, since it is larger than the sum of its proper divisors (202440410527).

1012202052605 is an equidigital number, since it uses as much as digits as its factorization.

1012202052605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202440410526.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 1012202052605 its reverse (5062502022101), we get a palindrome (6074704074706).

The spelling of 1012202052605 in words is "one trillion, twelve billion, two hundred two million, fifty-two thousand, six hundred five".