2011012022281 has 2 divisors, whose sum is σ = 2011012022282. Its totient is φ = 2011012022280.

The previous prime is 2011012022273. The next prime is 2011012022293. The reversal of 2011012022281 is 1822202101102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2008713778681 + 2298243600 = 1417291^2 + 47940^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011012022281 - 2³ = 2011012022273 is a prime.

It is a super-2 number, since 2×2011012022281² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2011012022381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005506011140 + 1005506011141.

It is an arithmetic number, because the mean of its divisors is an integer number (1005506011141).

Almost surely, 2^{2011012022281} is an apocalyptic number.

It is an amenable number.

2011012022281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011012022281 is an equidigital number, since it uses as much as digits as its factorization.

2011012022281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 2011012022281 its reverse (1822202101102), we get a palindrome (3833214123383).

The spelling of 2011012022281 in words is "two trillion, eleven billion, twelve million, twenty-two thousand, two hundred eighty-one".