1222231231101 has 4 divisors (see below), whose sum is σ = 1629641641472. Its totient is φ = 814820820732.

The previous prime is 1222231231057. The next prime is 1222231231147. The reversal of 1222231231101 is 1011321322221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1222231231101 - 2⁷ = 1222231230973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222231231201) 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, 203705205181 + ... + 203705205186.

It is an arithmetic number, because the mean of its divisors is an integer number (407410410368).

Almost surely, 2^{1222231231101} is an apocalyptic number.

It is an amenable number.

1222231231101 is a deficient number, since it is larger than the sum of its proper divisors (407410410371).

1222231231101 is an equidigital number, since it uses as much as digits as its factorization.

1222231231101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407410410370.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1222231231101 its reverse (1011321322221), we get a palindrome (2233552553322).

The spelling of 1222231231101 in words is "one trillion, two hundred twenty-two billion, two hundred thirty-one million, two hundred thirty-one thousand, one hundred one".