100221201122120 has 32 divisors (see below), whose sum is σ = 242843679643320. Its totient is φ = 37004751183360.

The previous prime is 100221201122117. The next prime is 100221201122131. The reversal of 100221201122120 is 21221102122001.

It can be written as a sum of positive squares in 4 ways, for example, as 82333156832644 + 17888044289476 = 9073762^2 + 4229426^2 .

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, 96366539021 + ... + 96366540060.

Almost surely, 2^{100221201122120} is an apocalyptic number.

100221201122120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100221201122120 is an abundant number, since it is smaller than the sum of its proper divisors (142622478521200).

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

100221201122120 is a wasteful number, since it uses less digits than its factorization.

100221201122120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192733079105 (or 192733079101 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 100221201122120 its reverse (21221102122001), we get a palindrome (121442303244121).

The spelling of 100221201122120 in words is "one hundred trillion, two hundred twenty-one billion, two hundred one million, one hundred twenty-two thousand, one hundred twenty".