100121222220110 has 192 divisors, whose sum is σ = 233080229168640. Its totient is φ = 30660677591040.

The previous prime is 100121222220109. The next prime is 100121222220113. The reversal of 100121222220110 is 11022222121001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100121222220113) 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 95 ways as a sum of consecutive naturals, for example, 1818473702 + ... + 1818528758.

It is an arithmetic number, because the mean of its divisors is an integer number (1213959526920).

Almost surely, 2^{100121222220110} is an apocalyptic number.

100121222220110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100121222220110 is an abundant number, since it is smaller than the sum of its proper divisors (132959006948530).

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

100121222220110 is a wasteful number, since it uses less digits than its factorization.

100121222220110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64331 (or 64324 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 100121222220110 its reverse (11022222121001), we get a palindrome (111143444341111).

The spelling of 100121222220110 in words is "one hundred trillion, one hundred twenty-one billion, two hundred twenty-two million, two hundred twenty thousand, one hundred ten".