1211022221323 has 8 divisors (see below), whose sum is σ = 1226345037120. Its totient is φ = 1195764748800.

The previous prime is 1211022221303. The next prime is 1211022221341. The reversal of 1211022221323 is 3231222201121.

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 1211022221323 - 2¹³ = 1211022213131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1211022221294 and 1211022221303.

It is not an unprimeable number, because it can be changed into a prime (1211022221303) 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, 16298518 + ... + 16372651.

It is an arithmetic number, because the mean of its divisors is an integer number (153293129640).

Almost surely, 2^{1211022221323} is an apocalyptic number.

1211022221323 is a deficient number, since it is larger than the sum of its proper divisors (15322815797).

1211022221323 is a wasteful number, since it uses less digits than its factorization.

1211022221323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32671637.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1211022221323 its reverse (3231222201121), we get a palindrome (4442244422444).

The spelling of 1211022221323 in words is "one trillion, two hundred eleven billion, twenty-two million, two hundred twenty-one thousand, three hundred twenty-three".