101001102120220 has 48 divisors (see below), whose sum is σ = 213046254747648. Its totient is φ = 40220658688320.

The previous prime is 101001102120143. The next prime is 101001102120227. The reversal of 101001102120220 is 22021201100101.

It is a self number, because there is not a number n which added to its sum of digits gives 101001102120220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101001102120227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102946585 + ... + 103923055.

It is an arithmetic number, because the mean of its divisors is an integer number (4438463640576).

Almost surely, 2^{101001102120220} is an apocalyptic number.

101001102120220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101001102120220 is an abundant number, since it is smaller than the sum of its proper divisors (112045152627428).

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

101001102120220 is a wasteful number, since it uses less digits than its factorization.

101001102120220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999490 (or 999488 counting only the distinct ones).

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

Adding to 101001102120220 its reverse (22021201100101), we get a palindrome (123022303220321).

The spelling of 101001102120220 in words is "one hundred one trillion, one billion, one hundred two million, one hundred twenty thousand, two hundred twenty".