121122202211211 has 16 divisors (see below), whose sum is σ = 162740767277088. Its totient is φ = 80127821433600.

The previous prime is 121122202211201. The next prime is 121122202211249. The reversal of 121122202211211 is 112112202221121.

It is not a de Polignac number, because 121122202211211 - 2⁷ = 121122202211083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121122202211201) 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, 241681506 + ... + 242182151.

It is an arithmetic number, because the mean of its divisors is an integer number (10171297954818).

Almost surely, 2^{121122202211211} is an apocalyptic number.

121122202211211 is a deficient number, since it is larger than the sum of its proper divisors (41618565065877).

121122202211211 is a wasteful number, since it uses less digits than its factorization.

121122202211211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483864302.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 121122202211211 its reverse (112112202221121), we get a palindrome (233234404432332).

The spelling of 121122202211211 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, two hundred two million, two hundred eleven thousand, two hundred eleven".