1210223112221 has 8 divisors (see below), whose sum is σ = 1212094181088. Its totient is φ = 1208352978000.

The previous prime is 1210223112173. The next prime is 1210223112317. The reversal of 1210223112221 is 1222113220121.

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 1210223112221 - 2³⁰ = 1209149370397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1210223112193 and 1210223112202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210229112221) 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, 2380586 + ... + 2843876.

It is an arithmetic number, because the mean of its divisors is an integer number (151511772636).

Almost surely, 2^{1210223112221} is an apocalyptic number.

It is an amenable number.

1210223112221 is a deficient number, since it is larger than the sum of its proper divisors (1871068867).

1210223112221 is an equidigital number, since it uses as much as digits as its factorization.

1210223112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467323.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 1210223112221 its reverse (1222113220121), we get a palindrome (2432336332342).

The spelling of 1210223112221 in words is "one trillion, two hundred ten billion, two hundred twenty-three million, one hundred twelve thousand, two hundred twenty-one".