121212102022 has 16 divisors (see below), whose sum is σ = 200310912144. Its totient is φ = 54550900000.

The previous prime is 121212102019. The next prime is 121212102041. The reversal of 121212102022 is 220201212121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121212101987 and 121212102005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27273229 + ... + 27277672.

It is an arithmetic number, because the mean of its divisors is an integer number (12519432009).

Almost surely, 2^121212102022 is an apocalyptic number.

121212102022 is a deficient number, since it is larger than the sum of its proper divisors (79098810122).

121212102022 is a wasteful number, since it uses less digits than its factorization.

121212102022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54551015.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 121212102022 its reverse (220201212121), we get a palindrome (341413314143).

The spelling of 121212102022 in words is "one hundred twenty-one billion, two hundred twelve million, one hundred two thousand, twenty-two".