20221001202222 has 384 divisors, whose sum is σ = 49177070272512. Its totient is φ = 5982410649600.

The previous prime is 20221001202179. The next prime is 20221001202277. The reversal of 20221001202222 is 22220210012202.

20221001202222 is a `hidden beast` number, since 20 + 221 + 0 + 0 + 1 + 202 + 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 = 20221001202195 and 20221001202204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 10248859228 + ... + 10248861200.

It is an arithmetic number, because the mean of its divisors is an integer number (128065287168).

Almost surely, 2^{20221001202222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20221001202222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24588535136256).

20221001202222 is an abundant number, since it is smaller than the sum of its proper divisors (28956069070290).

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

20221001202222 is a wasteful number, since it uses less digits than its factorization.

20221001202222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2376 (or 2373 counting only the distinct ones).

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

Adding to 20221001202222 its reverse (22220210012202), we get a palindrome (42441211214424).

The spelling of 20221001202222 in words is "twenty trillion, two hundred twenty-one billion, one million, two hundred two thousand, two hundred twenty-two".