20011022110212 has 48 divisors (see below), whose sum is σ = 53362948007040. Its totient is φ = 5717411062272.

The previous prime is 20011022110199. The next prime is 20011022110213. The reversal of 20011022110212 is 21201122011002.

It is a junction number, because it is equal to n+sod(n) for n = 20011022110191 and 20011022110200.

It is not an unprimeable number, because it can be changed into a prime (20011022110213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33810364 + ... + 34397132.

It is an arithmetic number, because the mean of its divisors is an integer number (1111728083480).

Almost surely, 2^{20011022110212} is an apocalyptic number.

It is an amenable number.

20011022110212 is an abundant number, since it is smaller than the sum of its proper divisors (33351925896828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20011022110212 is a wasteful number, since it uses less digits than its factorization.

20011022110212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992780 (or 992778 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20011022110212 its reverse (21201122011002), we get a palindrome (41212144121214).

The spelling of 20011022110212 in words is "twenty trillion, eleven billion, twenty-two million, one hundred ten thousand, two hundred twelve".