121122202021222 has 4 divisors (see below), whose sum is σ = 181683303031836. Its totient is φ = 60561101010610.

The previous prime is 121122202021201. The next prime is 121122202021229. The reversal of 121122202021222 is 222120202221121.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 121122202021193 and 121122202021202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121122202021229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30280550505304 + ... + 30280550505307.

It is an arithmetic number, because the mean of its divisors is an integer number (45420825757959).

Almost surely, 2^{121122202021222} is an apocalyptic number.

121122202021222 is a deficient number, since it is larger than the sum of its proper divisors (60561101010614).

121122202021222 is an equidigital number, since it uses as much as digits as its factorization.

121122202021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60561101010613.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 121122202021222 its reverse (222120202221121), we get a palindrome (343242404242343).

The spelling of 121122202021222 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, two hundred two million, twenty-one thousand, two hundred twenty-two".