12021020220122 has 8 divisors (see below), whose sum is σ = 18031689369972. Its totient is φ = 6010457096800.

The previous prime is 12021020220103. The next prime is 12021020220133. The reversal of 12021020220122 is 22102202012021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10694397712441 + 1326622507681 = 3270229^2 + 1151791^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12021020220122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26222579 + ... + 26677062.

Almost surely, 2^{12021020220122} is an apocalyptic number.

12021020220122 is a deficient number, since it is larger than the sum of its proper divisors (6010669149850).

12021020220122 is a wasteful number, since it uses less digits than its factorization.

12021020220122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53013264.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12021020220122 its reverse (22102202012021), we get a palindrome (34123222232143).

The spelling of 12021020220122 in words is "twelve trillion, twenty-one billion, twenty million, two hundred twenty thousand, one hundred twenty-two".