121101112222 has 4 divisors (see below), whose sum is σ = 181651668336. Its totient is φ = 60550556110.

The previous prime is 121101112199. The next prime is 121101112243. The reversal of 121101112222 is 222211101121.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 121101112196 and 121101112205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30275278054 + ... + 30275278057.

It is an arithmetic number, because the mean of its divisors is an integer number (45412917084).

Almost surely, 2^121101112222 is an apocalyptic number.

121101112222 is a deficient number, since it is larger than the sum of its proper divisors (60550556114).

121101112222 is an equidigital number, since it uses as much as digits as its factorization.

121101112222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60550556113.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121101112222 its reverse (222211101121), we get a palindrome (343312213343).

The spelling of 121101112222 in words is "one hundred twenty-one billion, one hundred one million, one hundred twelve thousand, two hundred twenty-two".