12121121122022 has 32 divisors (see below), whose sum is σ = 20474823168000. Its totient is φ = 5331757723200.

The previous prime is 12121121122001. The next prime is 12121121122069. The reversal of 12121121122022 is 22022112112121.

12121121122022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12121121121985 and 12121121122003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37210754 + ... + 37535082.

It is an arithmetic number, because the mean of its divisors is an integer number (639838224000).

Almost surely, 2^{12121121122022} is an apocalyptic number.

12121121122022 is a deficient number, since it is larger than the sum of its proper divisors (8353702045978).

12121121122022 is a wasteful number, since it uses less digits than its factorization.

12121121122022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379172.

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

Adding to 12121121122022 its reverse (22022112112121), we get a palindrome (34143233234143).

Subtracting 12121121122022 from its reverse (22022112112121), we obtain a palindrome (9900990990099).

The spelling of 12121121122022 in words is "twelve trillion, one hundred twenty-one billion, one hundred twenty-one million, one hundred twenty-two thousand, twenty-two".