20011001212110 has 16 divisors (see below), whose sum is σ = 48026402909136. Its totient is φ = 5336266989888.

The previous prime is 20011001212031. The next prime is 20011001212199. The reversal of 20011001212110 is 1121210011002.

It is a super-2 number, since 2×20011001212110² (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 (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333516686839 + ... + 333516686898.

It is an arithmetic number, because the mean of its divisors is an integer number (3001650181821).

Almost surely, 2^{20011001212110} is an apocalyptic number.

20011001212110 is an abundant number, since it is smaller than the sum of its proper divisors (28015401697026).

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

20011001212110 is a wasteful number, since it uses less digits than its factorization.

20011001212110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667033373747.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 20011001212110 its reverse (1121210011002), we get a palindrome (21132211223112).

The spelling of 20011001212110 in words is "twenty trillion, eleven billion, one million, two hundred twelve thousand, one hundred ten".