2011022020801 has 2 divisors, whose sum is σ = 2011022020802. Its totient is φ = 2011022020800.

The previous prime is 2011022020793. The next prime is 2011022020811. The reversal of 2011022020801 is 1080202201102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1867729489201 + 143292531600 = 1366649^2 + 378540^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011022020801 - 2³ = 2011022020793 is a prime.

It is not a weakly prime, because it can be changed into another prime (2011022020811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005511010400 + 1005511010401.

It is an arithmetic number, because the mean of its divisors is an integer number (1005511010401).

Almost surely, 2^{2011022020801} is an apocalyptic number.

It is an amenable number.

2011022020801 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011022020801 is an equidigital number, since it uses as much as digits as its factorization.

2011022020801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2011022020801 its reverse (1080202201102), we get a palindrome (3091224221903).

The spelling of 2011022020801 in words is "two trillion, eleven billion, twenty-two million, twenty thousand, eight hundred one".