11212020101986 has 64 divisors (see below), whose sum is σ = 19346097770496. Its totient is φ = 4827011803200.

The previous prime is 11212020101981. The next prime is 11212020102001. The reversal of 11212020101986 is 68910102021211.

It is a super-2 number, since 2×11212020101986² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11212020101981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5131276 + ... + 6982408.

It is an arithmetic number, because the mean of its divisors is an integer number (302282777664).

Almost surely, 2^{11212020101986} is an apocalyptic number.

11212020101986 is a deficient number, since it is larger than the sum of its proper divisors (8134077668510).

11212020101986 is a wasteful number, since it uses less digits than its factorization.

11212020101986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1851367.

The product of its (nonzero) digits is 3456, while the sum is 34.

The spelling of 11212020101986 in words is "eleven trillion, two hundred twelve billion, twenty million, one hundred one thousand, nine hundred eighty-six".