20200212112122 has 144 divisors (see below), whose sum is σ = 53069236178400. Its totient is φ = 5531688904896.

The previous prime is 20200212112109. The next prime is 20200212112123. The reversal of 20200212112122 is 22121121200202.

It is a happy number.

20200212112122 is a `hidden beast` number, since 20 + 200 + 21 + 211 + 212 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20200212112095 and 20200212112104.

It is not an unprimeable number, because it can be changed into a prime (20200212112123) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2432872 + ... + 6805827.

It is an arithmetic number, because the mean of its divisors is an integer number (368536362350).

Almost surely, 2^{20200212112122} is an apocalyptic number.

20200212112122 is an abundant number, since it is smaller than the sum of its proper divisors (32869024066278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20200212112122 is a wasteful number, since it uses less digits than its factorization.

20200212112122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9238825 (or 9238815 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20200212112122 its reverse (22121121200202), we get a palindrome (42321333312324).

The spelling of 20200212112122 in words is "twenty trillion, two hundred billion, two hundred twelve million, one hundred twelve thousand, one hundred twenty-two".