2010221010021 has 32 divisors (see below), whose sum is σ = 3071874150400. Its totient is φ = 1145445546240.

The previous prime is 2010221010011. The next prime is 2010221010043. The reversal of 2010221010021 is 1200101220102.

It is not a de Polignac number, because 2010221010021 - 2¹⁴ = 2010220993637 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2010221009979 and 2010221010006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2010221010011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16820445 + ... + 16939533.

It is an arithmetic number, because the mean of its divisors is an integer number (95996067200).

Almost surely, 2^{2010221010021} is an apocalyptic number.

2010221010021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2010221010021 is a deficient number, since it is larger than the sum of its proper divisors (1061653140379).

2010221010021 is a wasteful number, since it uses less digits than its factorization.

2010221010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121369.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2010221010021 its reverse (1200101220102), we get a palindrome (3210322230123).

The spelling of 2010221010021 in words is "two trillion, ten billion, two hundred twenty-one million, ten thousand, twenty-one".