2012101221020 has 48 divisors (see below), whose sum is σ = 4610837952000. Its totient is φ = 731467302720.

The previous prime is 2012101220989. The next prime is 2012101221061. The reversal of 2012101221020 is 201221012102.

It is a junction number, because it is equal to n+sod(n) for n = 2012101220986 and 2012101221004.

It is a congruent number.

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, 501920 + ... + 2067879.

It is an arithmetic number, because the mean of its divisors is an integer number (96059124000).

Almost surely, 2^{2012101221020} is an apocalyptic number.

2012101221020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012101221020 is an abundant number, since it is smaller than the sum of its proper divisors (2598736730980).

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

2012101221020 is a wasteful number, since it uses less digits than its factorization.

2012101221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2573378 (or 2573376 counting only the distinct ones).

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

Adding to 2012101221020 its reverse (201221012102), we get a palindrome (2213322233122).

The spelling of 2012101221020 in words is "two trillion, twelve billion, one hundred one million, two hundred twenty-one thousand, twenty".