1202222312011 has 4 divisors (see below), whose sum is σ = 1373968356592. Its totient is φ = 1030476267432.

The previous prime is 1202222311981. The next prime is 1202222312033. The reversal of 1202222312011 is 1102132222021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1202222312011 - 2⁷ = 1202222311883 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1202222312011.

It is not an unprimeable number, because it can be changed into a prime (1202222312411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85873022280 + ... + 85873022293.

It is an arithmetic number, because the mean of its divisors is an integer number (343492089148).

Almost surely, 2^{1202222312011} is an apocalyptic number.

1202222312011 is a deficient number, since it is larger than the sum of its proper divisors (171746044581).

1202222312011 is an equidigital number, since it uses as much as digits as its factorization.

1202222312011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171746044580.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1202222312011 its reverse (1102132222021), we get a palindrome (2304354534032).

The spelling of 1202222312011 in words is "one trillion, two hundred two billion, two hundred twenty-two million, three hundred twelve thousand, eleven".