20111023022102 has 32 divisors (see below), whose sum is σ = 30554625009888. Its totient is φ = 9926346928896.

The previous prime is 20111023022089. The next prime is 20111023022143. The reversal of 20111023022102 is 20122032011102.

It is a super-2 number, since 2×20111023022102² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1407046868 + ... + 1407061160.

It is an arithmetic number, because the mean of its divisors is an integer number (954832031559).

Almost surely, 2^{20111023022102} is an apocalyptic number.

20111023022102 is a deficient number, since it is larger than the sum of its proper divisors (10443601987786).

20111023022102 is a wasteful number, since it uses less digits than its factorization.

20111023022102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20624.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 20111023022102 its reverse (20122032011102), we get a palindrome (40233055033204).

The spelling of 20111023022102 in words is "twenty trillion, one hundred eleven billion, twenty-three million, twenty-two thousand, one hundred two".