12121002021022 has 16 divisors (see below), whose sum is σ = 18274664771712. Its totient is φ = 6029514975960.

The previous prime is 12121002020989. The next prime is 12121002021031. The reversal of 12121002021022 is 22012020012121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12121002020987 and 12121002021005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16612108 + ... + 17326399.

It is an arithmetic number, because the mean of its divisors is an integer number (1142166548232).

Almost surely, 2^{12121002021022} is an apocalyptic number.

12121002021022 is a deficient number, since it is larger than the sum of its proper divisors (6153662750690).

12121002021022 is a wasteful number, since it uses less digits than its factorization.

12121002021022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33939423.

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

Adding to 12121002021022 its reverse (22012020012121), we get a palindrome (34133022033143).

The spelling of 12121002021022 in words is "twelve trillion, one hundred twenty-one billion, two million, twenty-one thousand, twenty-two".