121201122211 has 8 divisors (see below), whose sum is σ = 131816606544. Its totient is φ = 110770255200.

The previous prime is 121201122199. The next prime is 121201122269. The reversal of 121201122211 is 112221102121.

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

It is not a de Polignac number, because 121201122211 - 2⁵ = 121201122179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121201122281) 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, 46152961 + ... + 46155586.

It is an arithmetic number, because the mean of its divisors is an integer number (16477075818).

Almost surely, 2^121201122211 is an apocalyptic number.

121201122211 is a deficient number, since it is larger than the sum of its proper divisors (10615484333).

121201122211 is a wasteful number, since it uses less digits than its factorization.

121201122211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92308661.

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

Adding to 121201122211 its reverse (112221102121), we get a palindrome (233422224332).

The spelling of 121201122211 in words is "one hundred twenty-one billion, two hundred one million, one hundred twenty-two thousand, two hundred eleven".