121122212021022 has 16 divisors (see below), whose sum is σ = 242452716768000. Its totient is φ = 40339355219352.

The previous prime is 121122212021021. The next prime is 121122212021081. The reversal of 121122212021022 is 220120212221121.

It is a self number, because there is not a number n which added to its sum of digits gives 121122212021022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121122212021021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8678856022 + ... + 8678869977.

It is an arithmetic number, because the mean of its divisors is an integer number (15153294798000).

Almost surely, 2^{121122212021022} is an apocalyptic number.

121122212021022 is an abundant number, since it is smaller than the sum of its proper divisors (121330504746978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121122212021022 is a wasteful number, since it uses less digits than its factorization.

121122212021022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17357727167.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 121122212021022 its reverse (220120212221121), we get a palindrome (341242424242143).

The spelling of 121122212021022 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, two hundred twelve million, twenty-one thousand, twenty-two".