121121202212122 has 64 divisors (see below), whose sum is σ = 218486007590400. Its totient is φ = 49235753723904.

The previous prime is 121121202212117. The next prime is 121121202212173. The reversal of 121121202212122 is 221212202121121.

It is a junction number, because it is equal to n+sod(n) for n = 121121202212093 and 121121202212102.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26322358 + ... + 30579550.

It is an arithmetic number, because the mean of its divisors is an integer number (3413843868600).

Almost surely, 2^{121121202212122} is an apocalyptic number.

121121202212122 is a deficient number, since it is larger than the sum of its proper divisors (97364805378278).

121121202212122 is a wasteful number, since it uses less digits than its factorization.

121121202212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4257967.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 121121202212122 its reverse (221212202121121), we get a palindrome (342333404333243).

The spelling of 121121202212122 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, two hundred two million, two hundred twelve thousand, one hundred twenty-two".