100211001001220 has 48 divisors (see below), whose sum is σ = 211196780803008. Its totient is φ = 39941081631360.

The previous prime is 100211001001183. The next prime is 100211001001249. The reversal of 100211001001220 is 22100100112001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 763586 + ... + 14177625.

It is an arithmetic number, because the mean of its divisors is an integer number (4399932933396).

Almost surely, 2^{100211001001220} is an apocalyptic number.

100211001001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100211001001220 is an abundant number, since it is smaller than the sum of its proper divisors (110985779801788).

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

100211001001220 is a wasteful number, since it uses less digits than its factorization.

100211001001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14942420 (or 14942418 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 100211001001220 its reverse (22100100112001), we get a palindrome (122311101113221).

The spelling of 100211001001220 in words is "one hundred trillion, two hundred eleven billion, one million, one thousand, two hundred twenty".