20220122020212 has 144 divisors (see below), whose sum is σ = 55063365407232. Its totient is φ = 6481073139840.

The previous prime is 20220122020201. The next prime is 20220122020213. The reversal of 20220122020212 is 21202022102202.

20220122020212 is a `hidden beast` number, since 20 + 220 + 1 + 220 + 202 + 1 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20220122020213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2593618 + ... + 6867830.

Almost surely, 2^{20220122020212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20220122020212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27531682703616).

20220122020212 is an abundant number, since it is smaller than the sum of its proper divisors (34843243387020).

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

20220122020212 is a wasteful number, since it uses less digits than its factorization.

20220122020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4274420 (or 4274406 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 20220122020212 its reverse (21202022102202), we get a palindrome (41422144122414).

The spelling of 20220122020212 in words is "twenty trillion, two hundred twenty billion, one hundred twenty-two million, twenty thousand, two hundred twelve".