22400001331 has 16 divisors (see below), whose sum is σ = 23681433600. Its totient is φ = 21153127968.

The previous prime is 22400001311. The next prime is 22400001343. The reversal of 22400001331 is 13310000422.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22400001331 - 2⁷ = 22400001203 is a prime.

It is a super-2 number, since 2×22400001331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22400001311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2392846 + ... + 2402188.

It is an arithmetic number, because the mean of its divisors is an integer number (1480089600).

Almost surely, 2^22400001331 is an apocalyptic number.

22400001331 is a deficient number, since it is larger than the sum of its proper divisors (1281432269).

22400001331 is a wasteful number, since it uses less digits than its factorization.

22400001331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11178.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 22400001331 its reverse (13310000422), we get a palindrome (35710001753).

Subtracting from 22400001331 its reverse (13310000422), we obtain a palindrome (9090000909).

The spelling of 22400001331 in words is "twenty-two billion, four hundred million, one thousand, three hundred thirty-one".