20010222222111 has 48 divisors (see below), whose sum is σ = 31786563324672. Its totient is φ = 12029448816000.

The previous prime is 20010222222097. The next prime is 20010222222149. The reversal of 20010222222111 is 11122222201002.

It is a happy number.

20010222222111 is a `hidden beast` number, since 200 + 10 + 2 + 222 + 221 + 11 = 666.

It is not a de Polignac number, because 20010222222111 - 2⁶ = 20010222222047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010222222811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9230251 + ... + 11190083.

It is an arithmetic number, because the mean of its divisors is an integer number (662220069264).

Almost surely, 2^{20010222222111} is an apocalyptic number.

20010222222111 is a deficient number, since it is larger than the sum of its proper divisors (11776341102561).

20010222222111 is a wasteful number, since it uses less digits than its factorization.

20010222222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1960684 (or 1960681 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20010222222111 its reverse (11122222201002), we get a palindrome (31132444423113).

The spelling of 20010222222111 in words is "twenty trillion, ten billion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred eleven".