1223221112101 has 8 divisors (see below), whose sum is σ = 1252005745760. Its totient is φ = 1194451825392.

The previous prime is 1223221112077. The next prime is 1223221112129. The reversal of 1223221112101 is 1012111223221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1223221112101 - 2¹¹ = 1223221110053 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 (1223221112401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3675375 + ... + 3994348.

It is an arithmetic number, because the mean of its divisors is an integer number (156500718220).

Almost surely, 2^{1223221112101} is an apocalyptic number.

It is an amenable number.

1223221112101 is a deficient number, since it is larger than the sum of its proper divisors (28784633659).

1223221112101 is an equidigital number, since it uses as much as digits as its factorization.

1223221112101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7673475.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 1223221112101 its reverse (1012111223221), we get a palindrome (2235332335322).

The spelling of 1223221112101 in words is "one trillion, two hundred twenty-three billion, two hundred twenty-one million, one hundred twelve thousand, one hundred one".