20011121102212 has 48 divisors (see below), whose sum is σ = 35462651716800. Its totient is φ = 9879810703488.

The previous prime is 20011121102209. The next prime is 20011121102233. The reversal of 20011121102212 is 21220112111002.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163831539 + ... + 163953637.

It is an arithmetic number, because the mean of its divisors is an integer number (738805244100).

Almost surely, 2^{20011121102212} is an apocalyptic number.

It is an amenable number.

20011121102212 is a deficient number, since it is larger than the sum of its proper divisors (15451530614588).

20011121102212 is a wasteful number, since it uses less digits than its factorization.

20011121102212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123892 (or 123890 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20011121102212 its reverse (21220112111002), we get a palindrome (41231233213214).

The spelling of 20011121102212 in words is "twenty trillion, eleven billion, one hundred twenty-one million, one hundred two thousand, two hundred twelve".