121210122211 has 8 divisors (see below), whose sum is σ = 121346875440. Its totient is φ = 121073419008.

The previous prime is 121210122181. The next prime is 121210122263. The reversal of 121210122211 is 112221012121.

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 121210122211 - 2⁷ = 121210122083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121210122311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6855100 + ... + 6872758.

It is an arithmetic number, because the mean of its divisors is an integer number (15168359430).

Almost surely, 2^121210122211 is an apocalyptic number.

121210122211 is a deficient number, since it is larger than the sum of its proper divisors (136753229).

121210122211 is a wasteful number, since it uses less digits than its factorization.

121210122211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25013.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121210122211 its reverse (112221012121), we get a palindrome (233431134332).

The spelling of 121210122211 in words is "one hundred twenty-one billion, two hundred ten million, one hundred twenty-two thousand, two hundred eleven".