121110011122 has 4 divisors (see below), whose sum is σ = 181665016686. Its totient is φ = 60555005560.

The previous prime is 121110011107. The next prime is 121110011129. The reversal of 121110011122 is 221110011121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221110011121 = 347 ⋅637204643.

It can be written as a sum of positive squares in only one way, i.e., 112881888441 + 8228122681 = 335979^2 + 90709^2 .

It is not an unprimeable number, because it can be changed into a prime (121110011129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30277502779 + ... + 30277502782.

Almost surely, 2^121110011122 is an apocalyptic number.

121110011122 is a deficient number, since it is larger than the sum of its proper divisors (60555005564).

121110011122 is an equidigital number, since it uses as much as digits as its factorization.

121110011122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60555005563.

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

Adding to 121110011122 its reverse (221110011121), we get a palindrome (342220022243).

Subtracting 121110011122 from its reverse (221110011121), we obtain a palindrome (99999999999).

The spelling of 121110011122 in words is "one hundred twenty-one billion, one hundred ten million, eleven thousand, one hundred twenty-two".