20122061 has 2 divisors, whose sum is σ = 20122062. Its totient is φ = 20122060.

The previous prime is 20122051. The next prime is 20122087. The reversal of 20122061 is 16022102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14969161 + 5152900 = 3869^2 + 2270^2 .

It is a cyclic number.

It is not a de Polignac number, because 20122061 - 2¹⁴ = 20105677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20122031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061030 + 10061031.

It is an arithmetic number, because the mean of its divisors is an integer number (10061031).

Almost surely, 2^20122061 is an apocalyptic number.

It is an amenable number.

20122061 is a deficient number, since it is larger than the sum of its proper divisors (1).

20122061 is an equidigital number, since it uses as much as digits as its factorization.

20122061 is an evil number, because the sum of its binary digits is even.

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

The square root of 20122061 is about 4485.7620311381. The cubic root of 20122061 is about 271.9928496174.

Adding to 20122061 its reverse (16022102), we get a palindrome (36144163).

The spelling of 20122061 in words is "twenty million, one hundred twenty-two thousand, sixty-one".