2012021130021 has 64 divisors (see below), whose sum is σ = 3142598860800. Its totient is φ = 1121357293056.

The previous prime is 2012021130013. The next prime is 2012021130029. The reversal of 2012021130021 is 1200311202102.

It is an interprime number because it is at equal distance from previous prime (2012021130013) and next prime (2012021130029).

It is not a de Polignac number, because 2012021130021 - 2³ = 2012021130013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012021130029) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 171712255 + ... + 171723971.

It is an arithmetic number, because the mean of its divisors is an integer number (49103107200).

Almost surely, 2^{2012021130021} is an apocalyptic number.

2012021130021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2012021130021 is a deficient number, since it is larger than the sum of its proper divisors (1130577730779).

2012021130021 is a wasteful number, since it uses less digits than its factorization.

2012021130021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13058.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 2012021130021 its reverse (1200311202102), we get a palindrome (3212332332123).

The spelling of 2012021130021 in words is "two trillion, twelve billion, twenty-one million, one hundred thirty thousand, twenty-one".