1031221233130 has 48 divisors (see below), whose sum is σ = 2041008453792. Its totient is φ = 374856389600.

The previous prime is 1031221233121. The next prime is 1031221233151. The reversal of 1031221233130 is 313321221301.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3290145 + ... + 3589915.

It is an arithmetic number, because the mean of its divisors is an integer number (42521009454).

Almost surely, 2^{1031221233130} is an apocalyptic number.

1031221233130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1031221233130 is a deficient number, since it is larger than the sum of its proper divisors (1009787220662).

1031221233130 is a wasteful number, since it uses less digits than its factorization.

1031221233130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302643 (or 302632 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1031221233130 its reverse (313321221301), we get a palindrome (1344542454431).

The spelling of 1031221233130 in words is "one trillion, thirty-one billion, two hundred twenty-one million, two hundred thirty-three thousand, one hundred thirty".