11210691986 has 16 divisors (see below), whose sum is σ = 18118344384. Its totient is φ = 5171661264.

The previous prime is 11210691983. The next prime is 11210692019. The reversal of 11210691986 is 68919601211.

It is a super-2 number, since 2×11210691986² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11210691983) 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, 49040 + ... + 157563.

It is an arithmetic number, because the mean of its divisors is an integer number (1132396524).

Almost surely, 2^11210691986 is an apocalyptic number.

11210691986 is a deficient number, since it is larger than the sum of its proper divisors (6907652398).

11210691986 is a wasteful number, since it uses less digits than its factorization.

11210691986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208705.

The product of its (nonzero) digits is 46656, while the sum is 44.

The spelling of 11210691986 in words is "eleven billion, two hundred ten million, six hundred ninety-one thousand, nine hundred eighty-six".