20110022012 has 12 divisors (see below), whose sum is σ = 35769465816. Its totient is φ = 9890174640.

The previous prime is 20110021961. The next prime is 20110022021. The reversal of 20110022012 is 21022001102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20110021984 and 20110022002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41208818 + ... + 41209305.

It is an arithmetic number, because the mean of its divisors is an integer number (2980788818).

Almost surely, 2^20110022012 is an apocalyptic number.

It is an amenable number.

20110022012 is a deficient number, since it is larger than the sum of its proper divisors (15659443804).

20110022012 is a wasteful number, since it uses less digits than its factorization.

20110022012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82418188 (or 82418186 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20110022012 its reverse (21022001102), we get a palindrome (41132023114).

The spelling of 20110022012 in words is "twenty billion, one hundred ten million, twenty-two thousand, twelve".