20110212222222 has 8 divisors (see below), whose sum is σ = 40220424444456. Its totient is φ = 6703404074072.

The previous prime is 20110212222131. The next prime is 20110212222229. The reversal of 20110212222222 is 22222221201102.

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

20110212222222 is an admirable number.

It is a super-2 number, since 2×20110212222222² (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 (20110212222229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1675851018513 + ... + 1675851018524.

It is an arithmetic number, because the mean of its divisors is an integer number (5027553055557).

Almost surely, 2^{20110212222222} is an apocalyptic number.

20110212222222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20110212222222 is a wasteful number, since it uses less digits than its factorization.

20110212222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3351702037042.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 20110212222222 its reverse (22222221201102), we get a palindrome (42332433423324).

The spelling of 20110212222222 in words is "twenty trillion, one hundred ten billion, two hundred twelve million, two hundred twenty-two thousand, two hundred twenty-two".