121111120102222 has 16 divisors (see below), whose sum is σ = 181950292563552. Its totient is φ = 60461025493120.

The previous prime is 121111120102139. The next prime is 121111120102241. The reversal of 121111120102222 is 222201021111121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 121111120102222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86564322 + ... + 87952282.

It is an arithmetic number, because the mean of its divisors is an integer number (11371893285222).

Almost surely, 2^{121111120102222} is an apocalyptic number.

121111120102222 is a deficient number, since it is larger than the sum of its proper divisors (60839172461330).

121111120102222 is a wasteful number, since it uses less digits than its factorization.

121111120102222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1456043.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 121111120102222 its reverse (222201021111121), we get a palindrome (343312141213343).

The spelling of 121111120102222 in words is "one hundred twenty-one trillion, one hundred eleven billion, one hundred twenty million, one hundred two thousand, two hundred twenty-two".