100121201110 has 32 divisors (see below), whose sum is σ = 206296439040. Its totient is φ = 34271798112.

The previous prime is 100121201099. The next prime is 100121201153. The reversal of 100121201110 is 11102121001.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1112004 + ... + 1198663.

It is an arithmetic number, because the mean of its divisors is an integer number (6446763720).

Almost surely, 2^100121201110 is an apocalyptic number.

100121201110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100121201110 is an abundant number, since it is smaller than the sum of its proper divisors (106175237930).

100121201110 is a wasteful number, since it uses less digits than its factorization.

100121201110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2311300.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 100121201110 its reverse (11102121001), we get a palindrome (111223322111).

The spelling of 100121201110 in words is "one hundred billion, one hundred twenty-one million, two hundred one thousand, one hundred ten".