100101120220 has 12 divisors (see below), whose sum is σ = 210212352504. Its totient is φ = 40040448080.

The previous prime is 100101120169. The next prime is 100101120253. The reversal of 100101120220 is 22021101001.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 100101120197 and 100101120206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2502527986 + ... + 2502528025.

It is an arithmetic number, because the mean of its divisors is an integer number (17517696042).

Almost surely, 2^100101120220 is an apocalyptic number.

100101120220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100101120220 is an abundant number, since it is smaller than the sum of its proper divisors (110111232284).

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

100101120220 is a wasteful number, since it uses less digits than its factorization.

100101120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5005056020 (or 5005056018 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 100101120220 its reverse (22021101001), we get a palindrome (122122221221).

The spelling of 100101120220 in words is "one hundred billion, one hundred one million, one hundred twenty thousand, two hundred twenty".