100212121011010 has 32 divisors (see below), whose sum is σ = 186683474165760. Its totient is φ = 38685689122752.

The previous prime is 100212121010983. The next prime is 100212121011017. The reversal of 100212121011010 is 10110121212001.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (100212121011017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74885314 + ... + 76211773.

It is an arithmetic number, because the mean of its divisors is an integer number (5833858567680).

Almost surely, 2^{100212121011010} is an apocalyptic number.

100212121011010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100212121011010 is a deficient number, since it is larger than the sum of its proper divisors (86471353154750).

100212121011010 is a wasteful number, since it uses less digits than its factorization.

100212121011010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151099410.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 100212121011010 its reverse (10110121212001), we get a palindrome (110322242223011).

The spelling of 100212121011010 in words is "one hundred trillion, two hundred twelve billion, one hundred twenty-one million, eleven thousand, ten".