12221121023311 has 8 divisors (see below), whose sum is σ = 12296199492864. Its totient is φ = 12146043801240.

The previous prime is 12221121023257. The next prime is 12221121023323. The reversal of 12221121023311 is 11332012112221.

It is a happy number.

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 12221121023311 - 2¹⁵ = 12221120990543 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 (12221121023911) 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, 26284920 + ... + 26745826.

It is an arithmetic number, because the mean of its divisors is an integer number (1537024936608).

Almost surely, 2^{12221121023311} is an apocalyptic number.

12221121023311 is a deficient number, since it is larger than the sum of its proper divisors (75078469553).

12221121023311 is a wasteful number, since it uses less digits than its factorization.

12221121023311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623741.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 12221121023311 its reverse (11332012112221), we get a palindrome (23553133135532).

The spelling of 12221121023311 in words is "twelve trillion, two hundred twenty-one billion, one hundred twenty-one million, twenty-three thousand, three hundred eleven".