100120101221210 has 64 divisors (see below), whose sum is σ = 213082608268800. Its totient is φ = 33140228335872.

The previous prime is 100120101221201. The next prime is 100120101221251. The reversal of 100120101221210 is 12122101021001.

It is a super-2 number, since 2×100120101221210² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a Curzon number.

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 31 ways as a sum of consecutive naturals, for example, 20442884 + ... + 24862656.

It is an arithmetic number, because the mean of its divisors is an integer number (3329415754200).

Almost surely, 2^{100120101221210} is an apocalyptic number.

100120101221210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100120101221210 is an abundant number, since it is smaller than the sum of its proper divisors (112962507047590).

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

100120101221210 is a wasteful number, since it uses less digits than its factorization.

100120101221210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4430975.

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

Adding to 100120101221210 its reverse (12122101021001), we get a palindrome (112242202242211).

The spelling of 100120101221210 in words is "one hundred trillion, one hundred twenty billion, one hundred one million, two hundred twenty-one thousand, two hundred ten".