2001020202277 has 2 divisors, whose sum is σ = 2001020202278. Its totient is φ = 2001020202276.

The previous prime is 2001020202217. The next prime is 2001020202281. The reversal of 2001020202277 is 7722020201002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1625436305476 + 375583896801 = 1274926^2 + 612849^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001020202277 - 2¹¹ = 2001020200229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2001020202217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000510101138 + 1000510101139.

It is an arithmetic number, because the mean of its divisors is an integer number (1000510101139).

Almost surely, 2^{2001020202277} is an apocalyptic number.

It is an amenable number.

2001020202277 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001020202277 is an equidigital number, since it uses as much as digits as its factorization.

2001020202277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1568, while the sum is 25.

Adding to 2001020202277 its reverse (7722020201002), we get a palindrome (9723040403279).

The spelling of 2001020202277 in words is "two trillion, one billion, twenty million, two hundred two thousand, two hundred seventy-seven".