121222001211011 has 4 divisors (see below), whose sum is σ = 121222032856800. Its totient is φ = 121221969565224.

The previous prime is 121222001210987. The next prime is 121222001211041. The reversal of 121222001211011 is 110112100222121.

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 121222001211011 - 2²² = 121221997016707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121222001211041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9134651 + ... + 18052308.

It is an arithmetic number, because the mean of its divisors is an integer number (30305508214200).

Almost surely, 2^{121222001211011} is an apocalyptic number.

121222001211011 is a deficient number, since it is larger than the sum of its proper divisors (31645789).

121222001211011 is an equidigital number, since it uses as much as digits as its factorization.

121222001211011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31645788.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121222001211011 its reverse (110112100222121), we get a palindrome (231334101433132).

The spelling of 121222001211011 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, one million, two hundred eleven thousand, eleven".