100001211120220 has 24 divisors (see below), whose sum is σ = 210430247127408. Its totient is φ = 39919017062400.

The previous prime is 100001211120193. The next prime is 100001211120221. The reversal of 100001211120220 is 22021112100001.

It is a super-4 number, since 4×100001211120220⁴ (a number of 57 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 100001211120220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100001211120221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5091701541 + ... + 5091721180.

It is an arithmetic number, because the mean of its divisors is an integer number (8767926963642).

Almost surely, 2^{100001211120220} is an apocalyptic number.

100001211120220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100001211120220 is an abundant number, since it is smaller than the sum of its proper divisors (110429036007188).

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

100001211120220 is a wasteful number, since it uses less digits than its factorization.

100001211120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10183423221 (or 10183423219 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 100001211120220 its reverse (22021112100001), we get a palindrome (122022323220221).

The spelling of 100001211120220 in words is "one hundred trillion, one billion, two hundred eleven million, one hundred twenty thousand, two hundred twenty".