60220621 has 2 divisors, whose sum is σ = 60220622. Its totient is φ = 60220620.

The previous prime is 60220619. The next prime is 60220627. The reversal of 60220621 is 12602206.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57547396 + 2673225 = 7586^2 + 1635^2 .

It is a cyclic number.

It is not a de Polignac number, because 60220621 - 2¹ = 60220619 is a prime.

Together with 60220619, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60220627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30110310 + 30110311.

It is an arithmetic number, because the mean of its divisors is an integer number (30110311).

Almost surely, 2^60220621 is an apocalyptic number.

It is an amenable number.

60220621 is a deficient number, since it is larger than the sum of its proper divisors (1).

60220621 is an equidigital number, since it uses as much as digits as its factorization.

60220621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 60220621 is about 7760.1946496206. The cubic root of 60220621 is about 391.9660116477.

Adding to 60220621 its reverse (12602206), we get a palindrome (72822827).

The spelling of 60220621 in words is "sixty million, two hundred twenty thousand, six hundred twenty-one".