11012120632621 has 2 divisors, whose sum is σ = 11012120632622. Its totient is φ = 11012120632620.

The previous prime is 11012120632609. The next prime is 11012120632651. The reversal of 11012120632621 is 12623602121011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9301097052900 + 1711023579721 = 3049770^2 + 1308061^2 .

It is a cyclic number.

It is not a de Polignac number, because 11012120632621 - 2⁹ = 11012120632109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11012120632621.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11012120632651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5506060316310 + 5506060316311.

It is an arithmetic number, because the mean of its divisors is an integer number (5506060316311).

Almost surely, 2^{11012120632621} is an apocalyptic number.

It is an amenable number.

11012120632621 is a deficient number, since it is larger than the sum of its proper divisors (1).

11012120632621 is an equidigital number, since it uses as much as digits as its factorization.

11012120632621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

Adding to 11012120632621 its reverse (12623602121011), we get a palindrome (23635722753632).

The spelling of 11012120632621 in words is "eleven trillion, twelve billion, one hundred twenty million, six hundred thirty-two thousand, six hundred twenty-one".