1200022020011 has 2 divisors, whose sum is σ = 1200022020012. Its totient is φ = 1200022020010.

The previous prime is 1200022019957. The next prime is 1200022020031. The reversal of 1200022020011 is 1100202200021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1200022020011 is a prime.

It is a super-2 number, since 2×1200022020011² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1200022019974 and 1200022020001.

It is not a weakly prime, because it can be changed into another prime (1200022020031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600011010005 + 600011010006.

It is an arithmetic number, because the mean of its divisors is an integer number (600011010006).

Almost surely, 2^{1200022020011} is an apocalyptic number.

1200022020011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200022020011 is an equidigital number, since it uses as much as digits as its factorization.

1200022020011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1200022020011 its reverse (1100202200021), we get a palindrome (2300224220032).

The spelling of 1200022020011 in words is "one trillion, two hundred billion, twenty-two million, twenty thousand, eleven".