121111102222 has 32 divisors (see below), whose sum is σ = 208888548480. Its totient is φ = 52084075680.

The previous prime is 121111102169. The next prime is 121111102247. The reversal of 121111102222 is 222201111121.

It is a junction number, because it is equal to n+sod(n) for n = 121111102196 and 121111102205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125053 + ... + 507799.

It is an arithmetic number, because the mean of its divisors is an integer number (6527767140).

Almost surely, 2^121111102222 is an apocalyptic number.

121111102222 is a deficient number, since it is larger than the sum of its proper divisors (87777446258).

121111102222 is a wasteful number, since it uses less digits than its factorization.

121111102222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383536.

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

Adding to 121111102222 its reverse (222201111121), we get a palindrome (343312213343).

The spelling of 121111102222 in words is "one hundred twenty-one billion, one hundred eleven million, one hundred two thousand, two hundred twenty-two".