2010312121021 has 6 divisors (see below), whose sum is σ = 2101517208350. Its totient is φ = 1922907245688.

The previous prime is 2010312120997. The next prime is 2010312121039. The reversal of 2010312121021 is 1201212130102.

It can be written as a sum of positive squares in only one way, i.e., 1965634844121 + 44677276900 = 1402011^2 + 211370^2 .

It is not a de Polignac number, because 2010312121021 - 2¹¹ = 2010312118973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2010312120986 and 2010312121004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2010312121091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1900105446 + ... + 1900106503.

Almost surely, 2^{2010312121021} is an apocalyptic number.

It is an amenable number.

2010312121021 is a deficient number, since it is larger than the sum of its proper divisors (91205087329).

2010312121021 is an equidigital number, since it uses as much as digits as its factorization.

2010312121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3800211995 (or 3800211972 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 2010312121021 its reverse (1201212130102), we get a palindrome (3211524251123).

The spelling of 2010312121021 in words is "two trillion, ten billion, three hundred twelve million, one hundred twenty-one thousand, twenty-one".