100021212211100 has 108 divisors (see below), whose sum is σ = 242699441736360. Its totient is φ = 35673199948800.

The previous prime is 100021212211099. The next prime is 100021212211103. The reversal of 100021212211100 is 1112212120001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100021212211103) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 90528311 + ... + 91626510.

Almost surely, 2^{100021212211100} is an apocalyptic number.

100021212211100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100021212211100 is an abundant number, since it is smaller than the sum of its proper divisors (142678229525260).

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

100021212211100 is a wasteful number, since it uses less digits than its factorization.

100021212211100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182154888 (or 182154864 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 100021212211100 its reverse (1112212120001), we get a palindrome (101133424331101).

The spelling of 100021212211100 in words is "one hundred trillion, twenty-one billion, two hundred twelve million, two hundred eleven thousand, one hundred".