121011120012211 has 64 divisors (see below), whose sum is σ = 145357752443904. Its totient is φ = 99298840896000.

The previous prime is 121011120012197. The next prime is 121011120012221. The reversal of 121011120012211 is 112210021110121.

It is a cyclic number.

It is not a de Polignac number, because 121011120012211 - 2³⁹ = 120461364198323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121011120012221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 554776576 + ... + 554994658.

It is an arithmetic number, because the mean of its divisors is an integer number (2271214881936).

Almost surely, 2^{121011120012211} is an apocalyptic number.

121011120012211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121011120012211 is a deficient number, since it is larger than the sum of its proper divisors (24346632431693).

121011120012211 is a wasteful number, since it uses less digits than its factorization.

121011120012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218684.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 121011120012211 its reverse (112210021110121), we get a palindrome (233221141122332).

The spelling of 121011120012211 in words is "one hundred twenty-one trillion, eleven billion, one hundred twenty million, twelve thousand, two hundred eleven".