10001121100220 has 48 divisors (see below), whose sum is σ = 21094762106880. Its totient is φ = 3982854152256.

The previous prime is 10001121100169. The next prime is 10001121100237. The reversal of 10001121100220 is 2200112110001.

It is a super-2 number, since 2×10001121100220² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 22257899 + ... + 22702781.

It is an arithmetic number, because the mean of its divisors is an integer number (439474210560).

Almost surely, 2^{10001121100220} is an apocalyptic number.

10001121100220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10001121100220 is an abundant number, since it is smaller than the sum of its proper divisors (11093641006660).

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

10001121100220 is a wasteful number, since it uses less digits than its factorization.

10001121100220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449834 (or 449832 counting only the distinct ones).

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

Adding to 10001121100220 its reverse (2200112110001), we get a palindrome (12201233210221).

The spelling of 10001121100220 in words is "ten trillion, one billion, one hundred twenty-one million, one hundred thousand, two hundred twenty".