12621133410061 has 16 divisors (see below), whose sum is σ = 13773980743488. Its totient is φ = 11469198988800.

The previous prime is 12621133410059. The next prime is 12621133410089. The reversal of 12621133410061 is 16001433112621.

It is a cyclic number.

It is not a de Polignac number, because 12621133410061 - 2¹ = 12621133410059 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12621133410161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332142315 + ... + 332180311.

It is an arithmetic number, because the mean of its divisors is an integer number (860873796468).

Almost surely, 2^{12621133410061} is an apocalyptic number.

12621133410061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12621133410061 is a deficient number, since it is larger than the sum of its proper divisors (1152847333427).

12621133410061 is a wasteful number, since it uses less digits than its factorization.

12621133410061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49212.

The product of its (nonzero) digits is 5184, while the sum is 31.

Adding to 12621133410061 its reverse (16001433112621), we get a palindrome (28622566522682).

The spelling of 12621133410061 in words is "twelve trillion, six hundred twenty-one billion, one hundred thirty-three million, four hundred ten thousand, sixty-one".