20202001122222 has 40 divisors (see below), whose sum is σ = 45597866330016. Its totient is φ = 6684847079328.

The previous prime is 20202001122187. The next prime is 20202001122223. The reversal of 20202001122222 is 22222110020202.

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 = 20202001122195 and 20202001122204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202001122223) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 455100838 + ... + 455145225.

Almost surely, 2^{20202001122222} is an apocalyptic number.

20202001122222 is an abundant number, since it is smaller than the sum of its proper divisors (25395865207794).

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

20202001122222 is a wasteful number, since it uses less digits than its factorization.

20202001122222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910246214 (or 910246205 counting only the distinct ones).

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

Adding to 20202001122222 its reverse (22222110020202), we get a palindrome (42424111142424).

The spelling of 20202001122222 in words is "twenty trillion, two hundred two billion, one million, one hundred twenty-two thousand, two hundred twenty-two".