1223112011421 has 8 divisors (see below), whose sum is σ = 1649139791040. Its totient is φ = 806246119712.

The previous prime is 1223112011411. The next prime is 1223112011423. The reversal of 1223112011421 is 1241102113221.

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 1223112011421 - 2¹⁷ = 1223111880349 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223112011423) 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, 2290471665 + ... + 2290472198.

It is an arithmetic number, because the mean of its divisors is an integer number (206142473880).

Almost surely, 2^{1223112011421} is an apocalyptic number.

It is an amenable number.

1223112011421 is a deficient number, since it is larger than the sum of its proper divisors (426027779619).

1223112011421 is an equidigital number, since it uses as much as digits as its factorization.

1223112011421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4580943955.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 1223112011421 its reverse (1241102113221), we get a palindrome (2464214124642).

The spelling of 1223112011421 in words is "one trillion, two hundred twenty-three billion, one hundred twelve million, eleven thousand, four hundred twenty-one".