121000001220011 has 4 divisors (see below), whose sum is σ = 121000117397400. Its totient is φ = 120999885042624.

The previous prime is 121000001219963. The next prime is 121000001220023. The reversal of 121000001220011 is 110022100000121.

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 121000001220011 - 2¹⁸ = 121000000957867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121000001219974 and 121000001220001.

It is not an unprimeable number, because it can be changed into a prime (121000001220071) 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, 56512166 + ... + 58614203.

It is an arithmetic number, because the mean of its divisors is an integer number (30250029349350).

Almost surely, 2^{121000001220011} is an apocalyptic number.

121000001220011 is a deficient number, since it is larger than the sum of its proper divisors (116177389).

121000001220011 is a wasteful number, since it uses less digits than its factorization.

121000001220011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116177388.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 121000001220011 its reverse (110022100000121), we get a palindrome (231022101220132).

The spelling of 121000001220011 in words is "one hundred twenty-one trillion, one million, two hundred twenty thousand, eleven".