1200021211043 has 2 divisors, whose sum is σ = 1200021211044. Its totient is φ = 1200021211042.

The previous prime is 1200021210979. The next prime is 1200021211063. The reversal of 1200021211043 is 3401121200021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1200021211043 - 2⁶ = 1200021210979 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1200021211063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600010605521 + 600010605522.

It is an arithmetic number, because the mean of its divisors is an integer number (600010605522).

Almost surely, 2^{1200021211043} is an apocalyptic number.

1200021211043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200021211043 is an equidigital number, since it uses as much as digits as its factorization.

1200021211043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1200021211043 its reverse (3401121200021), we get a palindrome (4601142411064).

The spelling of 1200021211043 in words is "one trillion, two hundred billion, twenty-one million, two hundred eleven thousand, forty-three".