102100110020 has 24 divisors (see below), whose sum is σ = 214501996800. Its totient is φ = 40822564832.

The previous prime is 102100110011. The next prime is 102100110023. The reversal of 102100110020 is 20011001201.

It is a super-2 number, since 2×102100110020² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102100110023) 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, 1044500 + ... + 1138059.

It is an arithmetic number, because the mean of its divisors is an integer number (8937583200).

Almost surely, 2^102100110020 is an apocalyptic number.

102100110020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102100110020 is an abundant number, since it is smaller than the sum of its proper divisors (112401886780).

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

102100110020 is a wasteful number, since it uses less digits than its factorization.

102100110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2184907 (or 2184905 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 102100110020 its reverse (20011001201), we get a palindrome (122111111221).

The spelling of 102100110020 in words is "one hundred two billion, one hundred million, one hundred ten thousand, twenty".