20020201212222 has 64 divisors (see below), whose sum is σ = 45597114501120. Its totient is φ = 6507395582400.

The previous prime is 20020201212203. The next prime is 20020201212317. The reversal of 20020201212222 is 22221210202002.

20020201212222 is a `hidden beast` number, since 200 + 20 + 201 + 21 + 2 + 222 = 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 = 20020201212195 and 20020201212204.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 2204083 + ... + 6700625.

It is an arithmetic number, because the mean of its divisors is an integer number (712454914080).

Almost surely, 2^{20020201212222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20020201212222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22798557250560).

20020201212222 is an abundant number, since it is smaller than the sum of its proper divisors (25576913288898).

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

20020201212222 is a wasteful number, since it uses less digits than its factorization.

20020201212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4498606 (or 4498600 counting only the distinct ones).

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

Adding to 20020201212222 its reverse (22221210202002), we get a palindrome (42241411414224).

The spelling of 20020201212222 in words is "twenty trillion, twenty billion, two hundred one million, two hundred twelve thousand, two hundred twenty-two".