11211010002197 has 2 divisors, whose sum is σ = 11211010002198. Its totient is φ = 11211010002196.

The previous prime is 11211010002187. The next prime is 11211010002211. The reversal of 11211010002197 is 79120001011211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7998720896401 + 3212289105796 = 2828201^2 + 1792286^2 .

It is a cyclic number.

It is not a de Polignac number, because 11211010002197 - 2²⁸ = 11210741566741 is a prime.

It is a super-2 number, since 2×11211010002197² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11211010002107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5605505001098 + 5605505001099.

It is an arithmetic number, because the mean of its divisors is an integer number (5605505001099).

Almost surely, 2^{11211010002197} is an apocalyptic number.

It is an amenable number.

11211010002197 is a deficient number, since it is larger than the sum of its proper divisors (1).

11211010002197 is an equidigital number, since it uses as much as digits as its factorization.

11211010002197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 26.

The spelling of 11211010002197 in words is "eleven trillion, two hundred eleven billion, ten million, two thousand, one hundred ninety-seven".