20120212011020 has 24 divisors (see below), whose sum is σ = 46093576607568. Its totient is φ = 7316440731200.

The previous prime is 20120212011013. The next prime is 20120212011049. The reversal of 20120212011020 is 2011021202102.

It is a junction number, because it is equal to n+sod(n) for n = 20120212010986 and 20120212011004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45727754351 + ... + 45727754790.

It is an arithmetic number, because the mean of its divisors is an integer number (1920565691982).

Almost surely, 2^{20120212011020} is an apocalyptic number.

20120212011020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20120212011020 is an abundant number, since it is smaller than the sum of its proper divisors (25973364596548).

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

20120212011020 is a wasteful number, since it uses less digits than its factorization.

20120212011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91455509161 (or 91455509159 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20120212011020 its reverse (2011021202102), we get a palindrome (22131233213122).

The spelling of 20120212011020 in words is "twenty trillion, one hundred twenty billion, two hundred twelve million, eleven thousand, twenty".