100121201111010 has 32 divisors (see below), whose sum is σ = 240291965765952. Its totient is φ = 26698866618560.

The previous prime is 100121201110937. The next prime is 100121201111101. The reversal of 100121201111010 is 10111102121001.

It is a super-3 number, since 3×100121201111010³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 652101 + ... + 14165720.

It is an arithmetic number, because the mean of its divisors is an integer number (7509123930186).

Almost surely, 2^{100121201111010} is an apocalyptic number.

100121201111010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100121201111010 is an abundant number, since it is smaller than the sum of its proper divisors (140170764654942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100121201111010 is a wasteful number, since it uses less digits than its factorization.

100121201111010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15043058.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 100121201111010 its reverse (10111102121001), we get a palindrome (110232303232011).

The spelling of 100121201111010 in words is "one hundred trillion, one hundred twenty-one billion, two hundred one million, one hundred eleven thousand, ten".