121221114122 has 64 divisors (see below), whose sum is σ = 199307347200. Its totient is φ = 55076474880.

The previous prime is 121221114109. The next prime is 121221114137. The reversal of 121221114122 is 221411122121.

It is a junction number, because it is equal to n+sod(n) for n = 121221114094 and 121221114103.

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, 197750288 + ... + 197750900.

It is an arithmetic number, because the mean of its divisors is an integer number (3114177300).

Almost surely, 2^121221114122 is an apocalyptic number.

121221114122 is a deficient number, since it is larger than the sum of its proper divisors (78086233078).

121221114122 is a wasteful number, since it uses less digits than its factorization.

121221114122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1551.

The product of its digits is 128, while the sum is 20.

Adding to 121221114122 its reverse (221411122121), we get a palindrome (342632236243).

The spelling of 121221114122 in words is "one hundred twenty-one billion, two hundred twenty-one million, one hundred fourteen thousand, one hundred twenty-two".