121210122210211 has 8 divisors (see below), whose sum is σ = 125452570731120. Its totient is φ = 116971859631648.

The previous prime is 121210122210187. The next prime is 121210122210227. The reversal of 121210122210211 is 112012221012121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121210122210211 - 2⁷ = 121210122210083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121210122210311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1046426661 + ... + 1046542486.

It is an arithmetic number, because the mean of its divisors is an integer number (15681571341390).

Almost surely, 2^{121210122210211} is an apocalyptic number.

121210122210211 is a deficient number, since it is larger than the sum of its proper divisors (4242448520909).

121210122210211 is a wasteful number, since it uses less digits than its factorization.

121210122210211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2092971173.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 121210122210211 its reverse (112012221012121), we get a palindrome (233222343222332).

The spelling of 121210122210211 in words is "one hundred twenty-one trillion, two hundred ten billion, one hundred twenty-two million, two hundred ten thousand, two hundred eleven".