1200221002111 has 2 divisors, whose sum is σ = 1200221002112. Its totient is φ = 1200221002110.

The previous prime is 1200221002087. The next prime is 1200221002133. The reversal of 1200221002111 is 1112001220021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1200221002111 - 2⁹ = 1200221001599 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1200221002091 and 1200221002100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1200221002181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600110501055 + 600110501056.

It is an arithmetic number, because the mean of its divisors is an integer number (600110501056).

Almost surely, 2^{1200221002111} is an apocalyptic number.

1200221002111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200221002111 is an equidigital number, since it uses as much as digits as its factorization.

1200221002111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1200221002111 its reverse (1112001220021), we get a palindrome (2312222222132).

The spelling of 1200221002111 in words is "one trillion, two hundred billion, two hundred twenty-one million, two thousand, one hundred eleven".