100120210210 has 128 divisors (see below), whose sum is σ = 197554334400. Its totient is φ = 36389683200.

The previous prime is 100120210187. The next prime is 100120210213. The reversal of 100120210210 is 12012021001.

It can be written as a sum of positive squares in 32 ways, for example, as 20133623449 + 79986586761 = 141893^2 + 282819^2 .

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

It is not an unprimeable number, because it can be changed into a prime (100120210213) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 244792486 + ... + 244792894.

Almost surely, 2^100120210210 is an apocalyptic number.

100120210210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100120210210 is a deficient number, since it is larger than the sum of its proper divisors (97434124190).

100120210210 is a wasteful number, since it uses less digits than its factorization.

100120210210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856.

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

Adding to 100120210210 its reverse (12012021001), we get a palindrome (112132231211).

The spelling of 100120210210 in words is "one hundred billion, one hundred twenty million, two hundred ten thousand, two hundred ten".