1231222030000 has 100 divisors (see below), whose sum is σ = 3031437035880. Its totient is φ = 484141312000.

The previous prime is 1231222029953. The next prime is 1231222030019. The reversal of 1231222030000 is 302221321.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 453409 + ... + 1633408.

Almost surely, 2^{1231222030000} is an apocalyptic number.

1231222030000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1231222030000 is an abundant number, since it is smaller than the sum of its proper divisors (1800215005880).

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

1231222030000 is an equidigital number, since it uses as much as digits as its factorization.

1231222030000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2086904 (or 2086883 counting only the distinct ones).

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

Adding to 1231222030000 its reverse (302221321), we get a palindrome (1231524251321).

The spelling of 1231222030000 in words is "one trillion, two hundred thirty-one billion, two hundred twenty-two million, thirty thousand".