20011110212222 has 8 divisors (see below), whose sum is σ = 30016706441400. Its totient is φ = 10005541398424.

The previous prime is 20011110212209. The next prime is 20011110212281. The reversal of 20011110212222 is 22221201111002.

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

It is a super-3 number, since 3×20011110212222³ (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20011110212222.

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 3 ways as a sum of consecutive naturals, for example, 4919897 + ... + 8014212.

It is an arithmetic number, because the mean of its divisors is an integer number (3752088305175).

Almost surely, 2^{20011110212222} is an apocalyptic number.

20011110212222 is a deficient number, since it is larger than the sum of its proper divisors (10005596229178).

20011110212222 is a wasteful number, since it uses less digits than its factorization.

20011110212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13707690.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20011110212222 its reverse (22221201111002), we get a palindrome (42232311323224).

The spelling of 20011110212222 in words is "twenty trillion, eleven billion, one hundred ten million, two hundred twelve thousand, two hundred twenty-two".