2012212021020 has 48 divisors (see below), whose sum is σ = 5650154606880. Its totient is φ = 535069782016.

The previous prime is 2012212021019. The next prime is 2012212021021. The reversal of 2012212021020 is 201202122102.

It is an interprime number because it is at equal distance from previous prime (2012212021019) and next prime (2012212021021).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012212021021) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 47481465 + ... + 47523824.

It is an arithmetic number, because the mean of its divisors is an integer number (117711554310).

Almost surely, 2^{2012212021020} is an apocalyptic number.

2012212021020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012212021020 is an abundant number, since it is smaller than the sum of its proper divisors (3637942585860).

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

2012212021020 is a wasteful number, since it uses less digits than its factorization.

2012212021020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95005654 (or 95005652 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2012212021020 its reverse (201202122102), we get a palindrome (2213414143122).

The spelling of 2012212021020 in words is "two trillion, twelve billion, two hundred twelve million, twenty-one thousand, twenty".