121120221112011 has 12 divisors (see below), whose sum is σ = 190856105994840. Its totient is φ = 73406194613280.

The previous prime is 121120221111991. The next prime is 121120221112021. The reversal of 121120221112011 is 110211122021121.

It is a happy number.

121120221112011 is a `hidden beast` number, since 1 + 211 + 20 + 221 + 11 + 201 + 1 = 666.

It is not a de Polignac number, because 121120221112011 - 2¹⁵ = 121120221079243 is a prime.

It is a super-2 number, since 2×121120221112011² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121120221112021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 611718288346 + ... + 611718288543.

It is an arithmetic number, because the mean of its divisors is an integer number (15904675499570).

Almost surely, 2^{121120221112011} is an apocalyptic number.

121120221112011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121120221112011 is a deficient number, since it is larger than the sum of its proper divisors (69735884882829).

121120221112011 is a wasteful number, since it uses less digits than its factorization.

121120221112011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223436576906 (or 1223436576903 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 121120221112011 its reverse (110211122021121), we get a palindrome (231331343133132).

The spelling of 121120221112011 in words is "one hundred twenty-one trillion, one hundred twenty billion, two hundred twenty-one million, one hundred twelve thousand, eleven".