2011122111049 has 2 divisors, whose sum is σ = 2011122111050. Its totient is φ = 2011122111048.

The previous prime is 2011122111041. The next prime is 2011122111091. The reversal of 2011122111049 is 9401112211102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1874393737225 + 136728373824 = 1369085^2 + 369768^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011122111049 - 2³ = 2011122111041 is a prime.

It is a super-2 number, since 2×2011122111049² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2011122111041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005561055524 + 1005561055525.

It is an arithmetic number, because the mean of its divisors is an integer number (1005561055525).

Almost surely, 2^{2011122111049} is an apocalyptic number.

It is an amenable number.

2011122111049 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011122111049 is an equidigital number, since it uses as much as digits as its factorization.

2011122111049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 25.

The spelling of 2011122111049 in words is "two trillion, eleven billion, one hundred twenty-two million, one hundred eleven thousand, forty-nine".