20062121 has 2 divisors, whose sum is σ = 20062122. Its totient is φ = 20062120.

The previous prime is 20062117. The next prime is 20062127. The reversal of 20062121 is 12126002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11424400 + 8637721 = 3380^2 + 2939^2 .

It is a cyclic number.

It is not a de Polignac number, because 20062121 - 2² = 20062117 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 20062096 and 20062105.

It is not a weakly prime, because it can be changed into another prime (20062127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10031060 + 10031061.

It is an arithmetic number, because the mean of its divisors is an integer number (10031061).

Almost surely, 2^20062121 is an apocalyptic number.

It is an amenable number.

20062121 is a deficient number, since it is larger than the sum of its proper divisors (1).

20062121 is an equidigital number, since it uses as much as digits as its factorization.

20062121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 20062121 is about 4479.0759091580. The cubic root of 20062121 is about 271.7225084166.

Adding to 20062121 its reverse (12126002), we get a palindrome (32188123).

The spelling of 20062121 in words is "twenty million, sixty-two thousand, one hundred twenty-one".