121012130211 has 32 divisors (see below), whose sum is σ = 189359385600. Its totient is φ = 67298065920.

The previous prime is 121012130209. The next prime is 121012130219. The reversal of 121012130211 is 112031210121.

It is not a de Polignac number, because 121012130211 - 2¹ = 121012130209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121012130219) 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 31 ways as a sum of consecutive naturals, for example, 180330 + ... + 523968.

It is an arithmetic number, because the mean of its divisors is an integer number (5917480800).

Almost surely, 2^121012130211 is an apocalyptic number.

121012130211 is a deficient number, since it is larger than the sum of its proper divisors (68347255389).

121012130211 is a wasteful number, since it uses less digits than its factorization.

121012130211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344099.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 121012130211 its reverse (112031210121), we get a palindrome (233043340332).

The spelling of 121012130211 in words is "one hundred twenty-one billion, twelve million, one hundred thirty thousand, two hundred eleven".