121211433101 has 12 divisors (see below), whose sum is σ = 133252389312. Its totient is φ = 110175681000.

The previous prime is 121211433047. The next prime is 121211433137. The reversal of 121211433101 is 101334112121.

It is not a de Polignac number, because 121211433101 - 2¹⁴ = 121211416717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121211433001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 774266 + ... + 917556.

It is an arithmetic number, because the mean of its divisors is an integer number (11104365776).

Almost surely, 2^121211433101 is an apocalyptic number.

121211433101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121211433101 is a deficient number, since it is larger than the sum of its proper divisors (12040956211).

121211433101 is a wasteful number, since it uses less digits than its factorization.

121211433101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150304 (or 150293 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 121211433101 its reverse (101334112121), we get a palindrome (222545545222).

The spelling of 121211433101 in words is "one hundred twenty-one billion, two hundred eleven million, four hundred thirty-three thousand, one hundred one".