11213211392501 has 2 divisors, whose sum is σ = 11213211392502. Its totient is φ = 11213211392500.

The previous prime is 11213211392497. The next prime is 11213211392503. The reversal of 11213211392501 is 10529311231211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7750243973476 + 3462967419025 = 2783926^2 + 1860905^2 .

It is a cyclic number.

It is not a de Polignac number, because 11213211392501 - 2² = 11213211392497 is a prime.

It is a super-3 number, since 3×11213211392501³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

Together with 11213211392503, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11213211392503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5606605696250 + 5606605696251.

It is an arithmetic number, because the mean of its divisors is an integer number (5606605696251).

Almost surely, 2^{11213211392501} is an apocalyptic number.

It is an amenable number.

11213211392501 is a deficient number, since it is larger than the sum of its proper divisors (1).

11213211392501 is an equidigital number, since it uses as much as digits as its factorization.

11213211392501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 32.

The spelling of 11213211392501 in words is "eleven trillion, two hundred thirteen billion, two hundred eleven million, three hundred ninety-two thousand, five hundred one".