20011202122222 has 8 divisors (see below), whose sum is σ = 30748920334272. Its totient is φ = 9761562010800.

The previous prime is 20011202122187. The next prime is 20011202122267. The reversal of 20011202122222 is 22222120211002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20011202122222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122019525054 + ... + 122019525217.

It is an arithmetic number, because the mean of its divisors is an integer number (3843615041784).

Almost surely, 2^{20011202122222} is an apocalyptic number.

20011202122222 is a deficient number, since it is larger than the sum of its proper divisors (10737718212050).

20011202122222 is a wasteful number, since it uses less digits than its factorization.

20011202122222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244039050314.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20011202122222 its reverse (22222120211002), we get a palindrome (42233322333224).

The spelling of 20011202122222 in words is "twenty trillion, eleven billion, two hundred two million, one hundred twenty-two thousand, two hundred twenty-two".