20112020012 has 18 divisors (see below), whose sum is σ = 40942326852. Its totient is φ = 8619437064.

The previous prime is 20112019969. The next prime is 20112020021. The reversal of 20112020012 is 21002021102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20112019975 and 20112020002.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51305978 + ... + 51306369.

It is an arithmetic number, because the mean of its divisors is an integer number (2274573714).

Almost surely, 2^20112020012 is an apocalyptic number.

It is an amenable number.

20112020012 is an abundant number, since it is smaller than the sum of its proper divisors (20830306840).

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

20112020012 is a wasteful number, since it uses less digits than its factorization.

20112020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102612365 (or 102612356 counting only the distinct ones).

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

Adding to 20112020012 its reverse (21002021102), we get a palindrome (41114041114).

The spelling of 20112020012 in words is "twenty billion, one hundred twelve million, twenty thousand, twelve".