12121202020022 has 16 divisors (see below), whose sum is σ = 18226899618480. Its totient is φ = 6045569859072.

The previous prime is 12121202020003. The next prime is 12121202020033. The reversal of 12121202020022 is 22002020212121.

It is a happy number.

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, 24386393 + ... + 24878475.

It is an arithmetic number, because the mean of its divisors is an integer number (1139181226155).

Almost surely, 2^{12121202020022} is an apocalyptic number.

12121202020022 is a deficient number, since it is larger than the sum of its proper divisors (6105697598458).

12121202020022 is a wasteful number, since it uses less digits than its factorization.

12121202020022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522607.

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

Adding to 12121202020022 its reverse (22002020212121), we get a palindrome (34123222232143).

The spelling of 12121202020022 in words is "twelve trillion, one hundred twenty-one billion, two hundred two million, twenty thousand, twenty-two".