121011110122 has 32 divisors (see below), whose sum is σ = 216836186112. Its totient is φ = 49522452144.

The previous prime is 121011110063. The next prime is 121011110123. The reversal of 121011110122 is 221011110121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (121011110123) 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, 131098 + ... + 509125.

It is an arithmetic number, because the mean of its divisors is an integer number (6776130816).

Almost surely, 2^121011110122 is an apocalyptic number.

121011110122 is a deficient number, since it is larger than the sum of its proper divisors (95825075990).

121011110122 is a wasteful number, since it uses less digits than its factorization.

121011110122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640842.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 121011110122 its reverse (221011110121), we get a palindrome (342022220243).

Subtracting 121011110122 from its reverse (221011110121), we obtain a palindrome (99999999999).

The spelling of 121011110122 in words is "one hundred twenty-one billion, eleven million, one hundred ten thousand, one hundred twenty-two".