1222442311 has 8 divisors (see below), whose sum is σ = 1296041600. Its totient is φ = 1149769080.

The previous prime is 1222442293. The next prime is 1222442321. The reversal of 1222442311 is 1132442221.

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

It is not a de Polignac number, because 1222442311 - 2¹³ = 1222434119 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 (1222442321) 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, 228795 + ... + 234076.

It is an arithmetic number, because the mean of its divisors is an integer number (162005200).

Almost surely, 2^1222442311 is an apocalyptic number.

1222442311 is a deficient number, since it is larger than the sum of its proper divisors (73599289).

1222442311 is a wasteful number, since it uses less digits than its factorization.

1222442311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463029.

The product of its digits is 768, while the sum is 22.

The square root of 1222442311 is about 34963.4424935532. The cubic root of 1222442311 is about 1069.2422827205.

Adding to 1222442311 its reverse (1132442221), we get a palindrome (2354884532).

The spelling of 1222442311 in words is "one billion, two hundred twenty-two million, four hundred forty-two thousand, three hundred eleven".