1000122021011 has 2 divisors, whose sum is σ = 1000122021012. Its totient is φ = 1000122021010.

The previous prime is 1000122020951. The next prime is 1000122021053. The reversal of 1000122021011 is 1101202210001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1000122021011 - 2¹⁴ = 1000122004627 is a prime.

It is a super-2 number, since 2×1000122021011² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1000122020983 and 1000122021001.

It is not a weakly prime, because it can be changed into another prime (1000122021211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500061010505 + 500061010506.

It is an arithmetic number, because the mean of its divisors is an integer number (500061010506).

Almost surely, 2^{1000122021011} is an apocalyptic number.

1000122021011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000122021011 is an equidigital number, since it uses as much as digits as its factorization.

1000122021011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1000122021011 its reverse (1101202210001), we get a palindrome (2101324231012).

The spelling of 1000122021011 in words is "one trillion, one hundred twenty-two million, twenty-one thousand, eleven".