100111220010988 has 24 divisors (see below), whose sum is σ = 186034784542992. Its totient is φ = 46975395308544.

The previous prime is 100111220010983. The next prime is 100111220011021. The reversal of 100111220010988 is 889010022111001.

It is a super-2 number, since 2×100111220010988² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (100111220010983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2121336381 + ... + 2121383572.

It is an arithmetic number, because the mean of its divisors is an integer number (7751449355958).

Almost surely, 2^{100111220010988} is an apocalyptic number.

It is an amenable number.

100111220010988 is a deficient number, since it is larger than the sum of its proper divisors (85923564532004).

100111220010988 is a wasteful number, since it uses less digits than its factorization.

100111220010988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4242720321 (or 4242720319 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 34.

Adding to 100111220010988 its reverse (889010022111001), we get a palindrome (989121242121989).

The spelling of 100111220010988 in words is "one hundred trillion, one hundred eleven billion, two hundred twenty million, ten thousand, nine hundred eighty-eight".