2012211111020 has 24 divisors (see below), whose sum is σ = 4609792727568. Its totient is φ = 731713131200.

The previous prime is 2012211111013. The next prime is 2012211111067. The reversal of 2012211111020 is 201111122102.

It is a junction number, because it is equal to n+sod(n) for n = 2012211110986 and 2012211111004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4573206851 + ... + 4573207290.

It is an arithmetic number, because the mean of its divisors is an integer number (192074696982).

Almost surely, 2^{2012211111020} is an apocalyptic number.

2012211111020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012211111020 is an abundant number, since it is smaller than the sum of its proper divisors (2597581616548).

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

2012211111020 is a wasteful number, since it uses less digits than its factorization.

2012211111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9146414161 (or 9146414159 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2012211111020 its reverse (201111122102), we get a palindrome (2213322233122).

The spelling of 2012211111020 in words is "two trillion, twelve billion, two hundred eleven million, one hundred eleven thousand, twenty".