1231002223222 has 16 divisors (see below), whose sum is σ = 1872571564800. Its totient is φ = 606812267880.

The previous prime is 1231002223219. The next prime is 1231002223223. The reversal of 1231002223222 is 2223222001321.

It is a super-2 number, since 2×1231002223222² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1231002223193 and 1231002223202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231002223223) 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, 4837279 + ... + 5085397.

It is an arithmetic number, because the mean of its divisors is an integer number (117035722800).

Almost surely, 2^{1231002223222} is an apocalyptic number.

1231002223222 is a deficient number, since it is larger than the sum of its proper divisors (641569341578).

1231002223222 is a wasteful number, since it uses less digits than its factorization.

1231002223222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283131.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 1231002223222 its reverse (2223222001321), we get a palindrome (3454224224543).

The spelling of 1231002223222 in words is "one trillion, two hundred thirty-one billion, two million, two hundred twenty-three thousand, two hundred twenty-two".