121220112211022 has 12 divisors (see below), whose sum is σ = 199862912282208. Its totient is φ = 55100051004900.

The previous prime is 121220112211007. The next prime is 121220112211049. The reversal of 121220112211022 is 220112211022121.

It is a junction number, because it is equal to n+sod(n) for n = 121220112210985 and 121220112211003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 250454777054 + ... + 250454777537.

It is an arithmetic number, because the mean of its divisors is an integer number (16655242690184).

Almost surely, 2^{121220112211022} is an apocalyptic number.

121220112211022 is a deficient number, since it is larger than the sum of its proper divisors (78642800071186).

121220112211022 is a wasteful number, since it uses less digits than its factorization.

121220112211022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500909554615 (or 500909554604 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 121220112211022 its reverse (220112211022121), we get a palindrome (341332323233143).

It can be divided in two parts, 121 and 220112211022, that multiplied together give a palindrome (26633577533662).

The spelling of 121220112211022 in words is "one hundred twenty-one trillion, two hundred twenty billion, one hundred twelve million, two hundred eleven thousand, twenty-two".