121001111200211 has 32 divisors (see below), whose sum is σ = 134439906263040. Its totient is φ = 107974474135200.

The previous prime is 121001111200157. The next prime is 121001111200241. The reversal of 121001111200211 is 112002111100121.

It is a de Polignac number, because none of the positive numbers 2^k-121001111200211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121001111200241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1257615896 + ... + 1257712106.

It is an arithmetic number, because the mean of its divisors is an integer number (4201247070720).

Almost surely, 2^{121001111200211} is an apocalyptic number.

121001111200211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121001111200211 is a deficient number, since it is larger than the sum of its proper divisors (13438795062829).

121001111200211 is a wasteful number, since it uses less digits than its factorization.

121001111200211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99167.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 121001111200211 its reverse (112002111100121), we get a palindrome (233003222300332).

The spelling of 121001111200211 in words is "one hundred twenty-one trillion, one billion, one hundred eleven million, two hundred thousand, two hundred eleven".