2012101221021 has 8 divisors (see below), whose sum is σ = 2688997476480. Its totient is φ = 1338302889792.

The previous prime is 2012101220989. The next prime is 2012101221061. The reversal of 2012101221021 is 1201221012102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2012101221021 - 2⁵ = 2012101220989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012101221061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 774479541 + ... + 774482138.

It is an arithmetic number, because the mean of its divisors is an integer number (336124684560).

Almost surely, 2^{2012101221021} is an apocalyptic number.

It is an amenable number.

2012101221021 is a deficient number, since it is larger than the sum of its proper divisors (676896255459).

2012101221021 is a wasteful number, since it uses less digits than its factorization.

2012101221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548962115.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2012101221021 its reverse (1201221012102), we get a palindrome (3213322233123).

The spelling of 2012101221021 in words is "two trillion, twelve billion, one hundred one million, two hundred twenty-one thousand, twenty-one".