121122222021201 has 16 divisors (see below), whose sum is σ = 164685812981760. Its totient is φ = 79166096777040.

The previous prime is 121122222021193. The next prime is 121122222021293. The reversal of 121122222021201 is 102120222221121.

It is not a de Polignac number, because 121122222021201 - 2³ = 121122222021193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121122222021601) 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, 1588366705 + ... + 1588442958.

It is an arithmetic number, because the mean of its divisors is an integer number (10292863311360).

Almost surely, 2^{121122222021201} is an apocalyptic number.

It is an amenable number.

121122222021201 is a deficient number, since it is larger than the sum of its proper divisors (43563590960559).

121122222021201 is a wasteful number, since it uses less digits than its factorization.

121122222021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3176809916.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 121122222021201 its reverse (102120222221121), we get a palindrome (223242444242322).

The spelling of 121122222021201 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, two hundred twenty-two million, twenty-one thousand, two hundred one".