121222022122 has 4 divisors (see below), whose sum is σ = 181833033186. Its totient is φ = 60611011060.

The previous prime is 121222022101. The next prime is 121222022161. The reversal of 121222022122 is 221220222121.

121222022122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221220222121 = 23 ⋅9618270527.

It can be written as a sum of positive squares in only one way, i.e., 68224917601 + 52997104521 = 261199^2 + 230211^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 121222022122.

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 as a sum of consecutive naturals, namely, 30305505529 + ... + 30305505532.

Almost surely, 2^121222022122 is an apocalyptic number.

121222022122 is a deficient number, since it is larger than the sum of its proper divisors (60611011064).

121222022122 is an equidigital number, since it uses as much as digits as its factorization.

121222022122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60611011063.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 121222022122 its reverse (221220222121), we get a palindrome (342442244243).

It can be divided in two parts, 12122202 and 2122, that added together give a square (12124324 = 3482²).

The spelling of 121222022122 in words is "one hundred twenty-one billion, two hundred twenty-two million, twenty-two thousand, one hundred twenty-two".