620221200701 has 2 divisors, whose sum is σ = 620221200702. Its totient is φ = 620221200700.

The previous prime is 620221200671. The next prime is 620221200727. The reversal of 620221200701 is 107002122026.

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., 351405912025 + 268815288676 = 592795^2 + 518474^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-620221200701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (620221200761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310110600350 + 310110600351.

It is an arithmetic number, because the mean of its divisors is an integer number (310110600351).

Almost surely, 2^620221200701 is an apocalyptic number.

It is an amenable number.

620221200701 is a deficient number, since it is larger than the sum of its proper divisors (1).

620221200701 is an equidigital number, since it uses as much as digits as its factorization.

620221200701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 23.

Adding to 620221200701 its reverse (107002122026), we get a palindrome (727223322727).

The spelling of 620221200701 in words is "six hundred twenty billion, two hundred twenty-one million, two hundred thousand, seven hundred one".