121010210211 has 16 divisors (see below), whose sum is σ = 176664365568. Its totient is φ = 73068890400.

The previous prime is 121010210207. The next prime is 121010210261. The reversal of 121010210211 is 112012010121.

It is not a de Polignac number, because 121010210211 - 2² = 121010210207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121010210261) 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 15 ways as a sum of consecutive naturals, for example, 6756696 + ... + 6774581.

It is an arithmetic number, because the mean of its divisors is an integer number (11041522848).

Almost surely, 2^121010210211 is an apocalyptic number.

121010210211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121010210211 is a deficient number, since it is larger than the sum of its proper divisors (55654155357).

121010210211 is a wasteful number, since it uses less digits than its factorization.

121010210211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13531562.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 121010210211 its reverse (112012010121), we get a palindrome (233022220332).

The spelling of 121010210211 in words is "one hundred twenty-one billion, ten million, two hundred ten thousand, two hundred eleven".