121404212210211 has 16 divisors (see below), whose sum is σ = 185008929172224. Its totient is φ = 69369322657824.

The previous prime is 121404212210207. The next prime is 121404212210219. The reversal of 121404212210211 is 112012212404121.

It is not a de Polignac number, because 121404212210211 - 2² = 121404212210207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121404212210219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187706601 + ... + 188352266.

It is an arithmetic number, because the mean of its divisors is an integer number (11563058073264).

Almost surely, 2^{121404212210211} is an apocalyptic number.

121404212210211 is a deficient number, since it is larger than the sum of its proper divisors (63604716962013).

121404212210211 is a wasteful number, since it uses less digits than its factorization.

121404212210211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376074250.

The product of its (nonzero) digits is 512, while the sum is 24.

Adding to 121404212210211 its reverse (112012212404121), we get a palindrome (233416424614332).

The spelling of 121404212210211 in words is "one hundred twenty-one trillion, four hundred four billion, two hundred twelve million, two hundred ten thousand, two hundred eleven".