100000021210 has 64 divisors (see below), whose sum is σ = 185977203840. Its totient is φ = 38695345920.

The previous prime is 100000021201. The next prime is 100000021211. The reversal of 100000021210 is 12120000001.

It is a junction number, because it is equal to n+sod(n) for n = 100000021193 and 100000021202.

It is not an unprimeable number, because it can be changed into a prime (100000021211) 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, 32163136 + ... + 32166244.

It is an arithmetic number, because the mean of its divisors is an integer number (2905893810).

Almost surely, 2^100000021210 is an apocalyptic number.

100000021210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100000021210 is a deficient number, since it is larger than the sum of its proper divisors (85977182630).

100000021210 is a wasteful number, since it uses less digits than its factorization.

100000021210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4031.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 100000021210 its reverse (12120000001), we get a palindrome (112120021211).

The spelling of 100000021210 in words is "one hundred billion, twenty-one thousand, two hundred ten".