100221120255412 has 24 divisors (see below), whose sum is σ = 190712034670976. Its totient is φ = 45806815230048.

The previous prime is 100221120255409. The next prime is 100221120255457. The reversal of 100221120255412 is 214552021122001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9355961808 + ... + 9355972519.

Almost surely, 2^{100221120255412} is an apocalyptic number.

It is an amenable number.

100221120255412 is a deficient number, since it is larger than the sum of its proper divisors (90490914415564).

100221120255412 is a wasteful number, since it uses less digits than its factorization.

100221120255412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18711934447 (or 18711934445 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 28.

Adding to 100221120255412 its reverse (214552021122001), we get a palindrome (314773141377413).

The spelling of 100221120255412 in words is "one hundred trillion, two hundred twenty-one billion, one hundred twenty million, two hundred fifty-five thousand, four hundred twelve".