2010122021 has 4 divisors (see below), whose sum is σ = 2010321600. Its totient is φ = 2009922444.

The previous prime is 2010122017. The next prime is 2010122069. The reversal of 2010122021 is 1202210102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2010122021 - 2² = 2010122017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2010121993 and 2010122011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2010122011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83831 + ... + 105108.

It is an arithmetic number, because the mean of its divisors is an integer number (502580400).

Almost surely, 2^2010122021 is an apocalyptic number.

It is an amenable number.

2010122021 is a deficient number, since it is larger than the sum of its proper divisors (199579).

2010122021 is a wasteful number, since it uses less digits than its factorization.

2010122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199578.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2010122021 is about 44834.3843606668. The cubic root of 2010122021 is about 1262.0429654526.

Adding to 2010122021 its reverse (1202210102), we get a palindrome (3212332123).

The spelling of 2010122021 in words is "two billion, ten million, one hundred twenty-two thousand, twenty-one".