12121020222022 has 24 divisors (see below), whose sum is σ = 19189115587656. Its totient is φ = 5741446653504.

The previous prime is 12121020221983. The next prime is 12121020222029. The reversal of 12121020222022 is 22022202012121.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121020222029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83074798 + ... + 83220574.

It is an arithmetic number, because the mean of its divisors is an integer number (799546482819).

Almost surely, 2^{12121020222022} is an apocalyptic number.

12121020222022 is a deficient number, since it is larger than the sum of its proper divisors (7068095365634).

12121020222022 is a wasteful number, since it uses less digits than its factorization.

12121020222022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260980 (or 260961 counting only the distinct ones).

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

Adding to 12121020222022 its reverse (22022202012121), we get a palindrome (34143222234143).

The spelling of 12121020222022 in words is "twelve trillion, one hundred twenty-one billion, twenty million, two hundred twenty-two thousand, twenty-two".