100000121210 has 64 divisors (see below), whose sum is σ = 199085382144. Its totient is φ = 35862528000.

The previous prime is 100000121209. The next prime is 100000121219. The reversal of 100000121210 is 12121000001.

It is not an unprimeable number, because it can be changed into a prime (100000121219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2837759 + ... + 2872781.

It is an arithmetic number, because the mean of its divisors is an integer number (3110709096).

Almost surely, 2^100000121210 is an apocalyptic number.

100000121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100000121210 is a deficient number, since it is larger than the sum of its proper divisors (99085260934).

100000121210 is a wasteful number, since it uses less digits than its factorization.

100000121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35399.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 100000121210 its reverse (12121000001), we get a palindrome (112121121211).

The spelling of 100000121210 in words is "one hundred billion, one hundred twenty-one thousand, two hundred ten".