111211002199969 has 4 divisors (see below), whose sum is σ = 127098288228544. Its totient is φ = 95323716171396.

The previous prime is 111211002199951. The next prime is 111211002199981. The reversal of 111211002199969 is 969991200112111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111211002199969 - 2⁷ = 111211002199841 is a prime.

It is a super-2 number, since 2×111211002199969² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111211002190969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7943643014277 + ... + 7943643014290.

It is an arithmetic number, because the mean of its divisors is an integer number (31774572057136).

Almost surely, 2^{111211002199969} is an apocalyptic number.

It is an amenable number.

111211002199969 is a deficient number, since it is larger than the sum of its proper divisors (15887286028575).

111211002199969 is an equidigital number, since it uses as much as digits as its factorization.

111211002199969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15887286028574.

The product of its (nonzero) digits is 157464, while the sum is 52.

The spelling of 111211002199969 in words is "one hundred eleven trillion, two hundred eleven billion, two million, one hundred ninety-nine thousand, nine hundred sixty-nine".