1020622552249 has 2 divisors, whose sum is σ = 1020622552250. Its totient is φ = 1020622552248.

The previous prime is 1020622552217. The next prime is 1020622552267. The reversal of 1020622552249 is 9422552260201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 962400240400 + 58222311849 = 981020^2 + 241293^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020622552249 - 2⁵ = 1020622552217 is a prime.

It is not a weakly prime, because it can be changed into another prime (1020622552289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510311276124 + 510311276125.

It is an arithmetic number, because the mean of its divisors is an integer number (510311276125).

Almost surely, 2^{1020622552249} is an apocalyptic number.

It is an amenable number.

1020622552249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020622552249 is an equidigital number, since it uses as much as digits as its factorization.

1020622552249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 1020622552249 in words is "one trillion, twenty billion, six hundred twenty-two million, five hundred fifty-two thousand, two hundred forty-nine".