9001122021011 has 2 divisors, whose sum is σ = 9001122021012. Its totient is φ = 9001122021010.

The previous prime is 9001122020953. The next prime is 9001122021029. The reversal of 9001122021011 is 1101202211009.

It is a strong prime.

It is an emirp because it is prime and its reverse (1101202211009) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9001122021011 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (9001122026011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4500561010505 + 4500561010506.

It is an arithmetic number, because the mean of its divisors is an integer number (4500561010506).

Almost surely, 2^{9001122021011} is an apocalyptic number.

9001122021011 is a deficient number, since it is larger than the sum of its proper divisors (1).

9001122021011 is an equidigital number, since it uses as much as digits as its factorization.

9001122021011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 9001122021011 in words is "nine trillion, one billion, one hundred twenty-two million, twenty-one thousand, eleven".