11102201200421 has 2 divisors, whose sum is σ = 11102201200422. Its totient is φ = 11102201200420.

The previous prime is 11102201200417. The next prime is 11102201200427. The reversal of 11102201200421 is 12400210220111.

11102201200421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11020341696100 + 81859504321 = 3319690^2 + 286111^2 .

It is a cyclic number.

It is not a de Polignac number, because 11102201200421 - 2² = 11102201200417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11102201200421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11102201200427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5551100600210 + 5551100600211.

It is an arithmetic number, because the mean of its divisors is an integer number (5551100600211).

Almost surely, 2^{11102201200421} is an apocalyptic number.

It is an amenable number.

11102201200421 is a deficient number, since it is larger than the sum of its proper divisors (1).

11102201200421 is an equidigital number, since it uses as much as digits as its factorization.

11102201200421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11102201200421 its reverse (12400210220111), we get a palindrome (23502411420532).

The spelling of 11102201200421 in words is "eleven trillion, one hundred two billion, two hundred one million, two hundred thousand, four hundred twenty-one".