101200122020 has 24 divisors (see below), whose sum is σ = 219848542200. Its totient is φ = 39084184832.

The previous prime is 101200121999. The next prime is 101200122029. The reversal of 101200122020 is 20221002101.

It is a happy number.

101200122020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 8962787584 + 92237334436 = 94672^2 + 303706^2 .

It is a junction number, because it is equal to n+sod(n) for n = 101200121992 and 101200122010.

It is not an unprimeable number, because it can be changed into a prime (101200122029) 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, 87240905 + ... + 87242064.

It is an arithmetic number, because the mean of its divisors is an integer number (9160355925).

Almost surely, 2^101200122020 is an apocalyptic number.

101200122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101200122020 is an abundant number, since it is smaller than the sum of its proper divisors (118648420180).

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

101200122020 is a wasteful number, since it uses less digits than its factorization.

101200122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174483007 (or 174483005 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 101200122020 its reverse (20221002101), we get a palindrome (121421124121).

The spelling of 101200122020 in words is "one hundred one billion, two hundred million, one hundred twenty-two thousand, twenty".