20211222030104 has 128 divisors (see below), whose sum is σ = 44441826508800. Its totient is φ = 8438347653120.

The previous prime is 20211222030101. The next prime is 20211222030187. The reversal of 20211222030104 is 40103022211202.

It is a super-2 number, since 2×20211222030104² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211222030101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 369647312 + ... + 369701984.

It is an arithmetic number, because the mean of its divisors is an integer number (347201769600).

Almost surely, 2^{20211222030104} 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 20211222030104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22220913254400).

20211222030104 is an abundant number, since it is smaller than the sum of its proper divisors (24230604478696).

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

20211222030104 is a wasteful number, since it uses less digits than its factorization.

20211222030104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55753 (or 55749 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 20211222030104 its reverse (40103022211202), we get a palindrome (60314244241306).

The spelling of 20211222030104 in words is "twenty trillion, two hundred eleven billion, two hundred twenty-two million, thirty thousand, one hundred four".