101100012220 has 48 divisors (see below), whose sum is σ = 214617261600. Its totient is φ = 40001299200.

The previous prime is 101100012203. The next prime is 101100012323. The reversal of 101100012220 is 22210001101.

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 = 101100012197 and 101100012206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2135971 + ... + 2182789.

It is an arithmetic number, because the mean of its divisors is an integer number (4471192950).

Almost surely, 2^101100012220 is an apocalyptic number.

101100012220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101100012220 is an abundant number, since it is smaller than the sum of its proper divisors (113517249380).

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

101100012220 is a wasteful number, since it uses less digits than its factorization.

101100012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47998 (or 47996 counting only the distinct ones).

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

Adding to 101100012220 its reverse (22210001101), we get a palindrome (123310013321).

The spelling of 101100012220 in words is "one hundred one billion, one hundred million, twelve thousand, two hundred twenty".