201112221201979 has 2 divisors, whose sum is σ = 201112221201980. Its totient is φ = 201112221201978.

The previous prime is 201112221201973. The next prime is 201112221202037. The reversal of 201112221201979 is 979102122211102.

It is a happy number.

201112221201979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201112221201979 - 2⁷ = 201112221201851 is a prime.

It is a super-2 number, since 2×201112221201979² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (201112221201973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100556110600989 + 100556110600990.

It is an arithmetic number, because the mean of its divisors is an integer number (100556110600990).

Almost surely, 2^{201112221201979} is an apocalyptic number.

201112221201979 is a deficient number, since it is larger than the sum of its proper divisors (1).

201112221201979 is an equidigital number, since it uses as much as digits as its factorization.

201112221201979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 40.

The spelling of 201112221201979 in words is "two hundred one trillion, one hundred twelve billion, two hundred twenty-one million, two hundred one thousand, nine hundred seventy-nine".