121112211032011 has 4 divisors (see below), whose sum is σ = 121112465562400. Its totient is φ = 121111956501624.

The previous prime is 121112211031979. The next prime is 121112211032083. The reversal of 121112211032011 is 110230112211121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121112211032011 - 2⁵ = 121112211031979 is a prime.

It is a super-2 number, since 2×121112211032011² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121112211032011.

It is not an unprimeable number, because it can be changed into a prime (121112211038011) 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, 126550116 + ... + 127503553.

It is an arithmetic number, because the mean of its divisors is an integer number (30278116390600).

Almost surely, 2^{121112211032011} is an apocalyptic number.

121112211032011 is a deficient number, since it is larger than the sum of its proper divisors (254530389).

121112211032011 is an equidigital number, since it uses as much as digits as its factorization.

121112211032011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254530388.

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 121112211032011 its reverse (110230112211121), we get a palindrome (231342323243132).

The spelling of 121112211032011 in words is "one hundred twenty-one trillion, one hundred twelve billion, two hundred eleven million, thirty-two thousand, eleven".