1331123223222 has 24 divisors (see below), whose sum is σ = 3105954188064. Its totient is φ = 409576376304.

The previous prime is 1331123223197. The next prime is 1331123223251. The reversal of 1331123223222 is 2223223211331.

1331123223222 is a `hidden beast` number, since 1 + 3 + 3 + 1 + 12 + 322 + 322 + 2 = 666.

It is a super-2 number, since 2×1331123223222² (a number of 25 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2844280158 + ... + 2844280625.

It is an arithmetic number, because the mean of its divisors is an integer number (129414757836).

Almost surely, 2^{1331123223222} is an apocalyptic number.

1331123223222 is an abundant number, since it is smaller than the sum of its proper divisors (1774830964842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1331123223222 is a wasteful number, since it uses less digits than its factorization.

1331123223222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5688560804 (or 5688560801 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

Adding to 1331123223222 its reverse (2223223211331), we get a palindrome (3554346434553).

The spelling of 1331123223222 in words is "one trillion, three hundred thirty-one billion, one hundred twenty-three million, two hundred twenty-three thousand, two hundred twenty-two".