2010212222121 has 20 divisors (see below), whose sum is σ = 3003043985172. Its totient is φ = 1340081515008.

The previous prime is 2010212222101. The next prime is 2010212222147. The reversal of 2010212222121 is 1212222120102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1870709972121 + 139502250000 = 1367739^2 + 373500^2 .

It is not a de Polignac number, because 2010212222121 - 2⁵ = 2010212222089 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2010212222094 and 2010212222103.

It is not an unprimeable number, because it can be changed into a prime (2010212222101) 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 19 ways as a sum of consecutive naturals, for example, 1304341 + ... + 2392013.

Almost surely, 2^{2010212222121} is an apocalyptic number.

It is an amenable number.

2010212222121 is a deficient number, since it is larger than the sum of its proper divisors (992831763051).

2010212222121 is a wasteful number, since it uses less digits than its factorization.

2010212222121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110502 (or 1110493 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2010212222121 its reverse (1212222120102), we get a palindrome (3222434342223).

The spelling of 2010212222121 in words is "two trillion, ten billion, two hundred twelve million, two hundred twenty-two thousand, one hundred twenty-one".