20102211122012 has 6 divisors (see below), whose sum is σ = 35178869463528. Its totient is φ = 10051105561004.

The previous prime is 20102211122011. The next prime is 20102211122017. The reversal of 20102211122012 is 21022111220102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102211122011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2512776390248 + ... + 2512776390255.

It is an arithmetic number, because the mean of its divisors is an integer number (5863144910588).

Almost surely, 2^{20102211122012} is an apocalyptic number.

It is an amenable number.

20102211122012 is a deficient number, since it is larger than the sum of its proper divisors (15076658341516).

20102211122012 is a wasteful number, since it uses less digits than its factorization.

20102211122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5025552780507 (or 5025552780505 counting only the distinct ones).

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

Adding to 20102211122012 its reverse (21022111220102), we get a palindrome (41124322342114).

The spelling of 20102211122012 in words is "twenty trillion, one hundred two billion, two hundred eleven million, one hundred twenty-two thousand, twelve".