2012022021 has 8 divisors (see below), whose sum is σ = 2712839040. Its totient is φ = 1326276512.

The previous prime is 2012022017. The next prime is 2012022031. The reversal of 2012022021 is 1202202102.

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

It is a cyclic number.

It is not a de Polignac number, because 2012022021 - 2² = 2012022017 is a prime.

It is a super-2 number, since 2×2012022021² = 8096465225977848882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2012021988 and 2012022006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012022031) 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, 3767565 + ... + 3768098.

It is an arithmetic number, because the mean of its divisors is an integer number (339104880).

Almost surely, 2^2012022021 is an apocalyptic number.

It is an amenable number.

2012022021 is a deficient number, since it is larger than the sum of its proper divisors (700817019).

2012022021 is an equidigital number, since it uses as much as digits as its factorization.

2012022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7535755.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2012022021 is about 44855.5684503050. The cubic root of 2012022021 is about 1262.4404747415.

Adding to 2012022021 its reverse (1202202102), we get a palindrome (3214224123).

The spelling of 2012022021 in words is "two billion, twelve million, twenty-two thousand, twenty-one".