2311221222321 has 8 divisors (see below), whose sum is σ = 3361776323424. Its totient is φ = 1400740134720.

The previous prime is 2311221222311. The next prime is 2311221222337. The reversal of 2311221222321 is 1232221221132.

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

It is not a de Polignac number, because 2311221222321 - 2⁶ = 2311221222257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2311221222291 and 2311221222300.

It is not an unprimeable number, because it can be changed into a prime (2311221222311) 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, 35018503336 + ... + 35018503401.

It is an arithmetic number, because the mean of its divisors is an integer number (420222040428).

Almost surely, 2^{2311221222321} is an apocalyptic number.

It is an amenable number.

2311221222321 is a deficient number, since it is larger than the sum of its proper divisors (1050555101103).

2311221222321 is a wasteful number, since it uses less digits than its factorization.

2311221222321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70037006751.

The product of its digits is 1152, while the sum is 24.

Adding to 2311221222321 its reverse (1232221221132), we get a palindrome (3543442443453).

The spelling of 2311221222321 in words is "two trillion, three hundred eleven billion, two hundred twenty-one million, two hundred twenty-two thousand, three hundred twenty-one".