1223211230101 has 4 divisors (see below), whose sum is σ = 1397955691552. Its totient is φ = 1048466768652.

The previous prime is 1223211230083. The next prime is 1223211230161. The reversal of 1223211230101 is 1010321123221.

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 a cyclic number.

It is not a de Polignac number, because 1223211230101 - 2⁵ = 1223211230069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223211230161) 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, 87372230715 + ... + 87372230728.

It is an arithmetic number, because the mean of its divisors is an integer number (349488922888).

Almost surely, 2^{1223211230101} is an apocalyptic number.

It is an amenable number.

1223211230101 is a deficient number, since it is larger than the sum of its proper divisors (174744461451).

1223211230101 is an equidigital number, since it uses as much as digits as its factorization.

1223211230101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174744461450.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1223211230101 its reverse (1010321123221), we get a palindrome (2233532353322).

The spelling of 1223211230101 in words is "one trillion, two hundred twenty-three billion, two hundred eleven million, two hundred thirty thousand, one hundred one".