11211002197 has 8 divisors (see below), whose sum is σ = 11383742912. Its totient is φ = 11038420800.

The previous prime is 11211002191. The next prime is 11211002227. The reversal of 11211002197 is 79120011211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11211002197 - 2²³ = 11202613589 is a prime.

It is a super-2 number, since 2×11211002197² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211002191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106072 + ... + 183502.

It is an arithmetic number, because the mean of its divisors is an integer number (1422967864).

Almost surely, 2^11211002197 is an apocalyptic number.

It is an amenable number.

11211002197 is a deficient number, since it is larger than the sum of its proper divisors (172740715).

11211002197 is an equidigital number, since it uses as much as digits as its factorization.

11211002197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79659.

The product of its (nonzero) digits is 252, while the sum is 25.

The spelling of 11211002197 in words is "eleven billion, two hundred eleven million, two thousand, one hundred ninety-seven".