121211102111122 has 8 divisors (see below), whose sum is σ = 192511750411836. Its totient is φ = 57040518640512.

The previous prime is 121211102111107. The next prime is 121211102111131. The reversal of 121211102111122 is 221111201112121.

It can be written as a sum of positive squares in 2 ways, for example, as 118216018452961 + 2995083658161 = 10872719^2 + 1730631^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 121211102111122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1782516207483 + ... + 1782516207550.

Almost surely, 2^{121211102111122} is an apocalyptic number.

121211102111122 is a deficient number, since it is larger than the sum of its proper divisors (71300648300714).

121211102111122 is a wasteful number, since it uses less digits than its factorization.

121211102111122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3565032415052.

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 121211102111122 its reverse (221111201112121), we get a palindrome (342322303223243).

Subtracting 121211102111122 from its reverse (221111201112121), we obtain a palindrome (99900099000999).

The spelling of 121211102111122 in words is "one hundred twenty-one trillion, two hundred eleven billion, one hundred two million, one hundred eleven thousand, one hundred twenty-two".