120201210100 has 18 divisors (see below), whose sum is σ = 260836626134. Its totient is φ = 48080484000.

The previous prime is 120201210029. The next prime is 120201210109. The reversal of 120201210100 is 1012102021.

It can be written as a sum of positive squares in 3 ways, for example, as 1475481744 + 118725728356 = 38412^2 + 344566^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120201210109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 601005951 + ... + 601006150.

Almost surely, 2^120201210100 is an apocalyptic number.

120201210100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120201210100 is an abundant number, since it is smaller than the sum of its proper divisors (140635416034).

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

120201210100 is a wasteful number, since it uses less digits than its factorization.

120201210100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202012115 (or 1202012108 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 120201210100 its reverse (1012102021), we get a palindrome (121213312121).

The spelling of 120201210100 in words is "one hundred twenty billion, two hundred one million, two hundred ten thousand, one hundred".