22002061 has 2 divisors, whose sum is σ = 22002062. Its totient is φ = 22002060.

The previous prime is 22002031. The next prime is 22002067. The reversal of 22002061 is 16020022.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21799561 + 202500 = 4669^2 + 450^2 .

It is a cyclic number.

It is not a de Polignac number, because 22002061 - 2¹⁵ = 21969293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22002067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11001030 + 11001031.

It is an arithmetic number, because the mean of its divisors is an integer number (11001031).

Almost surely, 2^22002061 is an apocalyptic number.

It is an amenable number.

22002061 is a deficient number, since it is larger than the sum of its proper divisors (1).

22002061 is an equidigital number, since it uses as much as digits as its factorization.

22002061 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 13.

The square root of 22002061 is about 4690.6354580163. The cubic root of 22002061 is about 280.2126827970.

Adding to 22002061 its reverse (16020022), we get a palindrome (38022083).

The spelling of 22002061 in words is "twenty-two million, two thousand, sixty-one".