1223021301011 has 4 divisors (see below), whose sum is σ = 1223027012592. Its totient is φ = 1223015589432.

The previous prime is 1223021300993. The next prime is 1223021301043. The reversal of 1223021301011 is 1101031203221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1223021301011 is a prime.

It is a super-4 number, since 4×1223021301011⁴ (a number of 49 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223021301311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2521556 + ... + 2967201.

It is an arithmetic number, because the mean of its divisors is an integer number (305756753148).

Almost surely, 2^{1223021301011} is an apocalyptic number.

1223021301011 is a deficient number, since it is larger than the sum of its proper divisors (5711581).

1223021301011 is an equidigital number, since it uses as much as digits as its factorization.

1223021301011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5711580.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1223021301011 its reverse (1101031203221), we get a palindrome (2324052504232).

The spelling of 1223021301011 in words is "one trillion, two hundred twenty-three billion, twenty-one million, three hundred one thousand, eleven".