100012121110 has 32 divisors (see below), whose sum is σ = 196447680000. Its totient is φ = 36356888160.

The previous prime is 100012121071. The next prime is 100012121173. The reversal of 100012121110 is 11121210001.

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, 225091 + ... + 500689.

It is an arithmetic number, because the mean of its divisors is an integer number (6138990000).

Almost surely, 2^100012121110 is an apocalyptic number.

100012121110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100012121110 is a deficient number, since it is larger than the sum of its proper divisors (96435558890).

100012121110 is a wasteful number, since it uses less digits than its factorization.

100012121110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278916.

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

Adding to 100012121110 its reverse (11121210001), we get a palindrome (111133331111).

It can be divided in two parts, 100012 and 121110, that added together give a palindrome (221122).

The spelling of 100012121110 in words is "one hundred billion, twelve million, one hundred twenty-one thousand, one hundred ten".