101200111111220 has 96 divisors (see below), whose sum is σ = 231967068278400. Its totient is φ = 36779916469760.

The previous prime is 101200111111213. The next prime is 101200111111223. The reversal of 101200111111220 is 22111111002101.

It is a junction number, because it is equal to n+sod(n) for n = 101200111111195 and 101200111111204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101200111111223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4528160606 + ... + 4528182954.

It is an arithmetic number, because the mean of its divisors is an integer number (2416323627900).

Almost surely, 2^{101200111111220} is an apocalyptic number.

101200111111220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101200111111220 is an abundant number, since it is smaller than the sum of its proper divisors (130766957167180).

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

101200111111220 is a wasteful number, since it uses less digits than its factorization.

101200111111220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32705 (or 32703 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 101200111111220 its reverse (22111111002101), we get a palindrome (123311222113321).

The spelling of 101200111111220 in words is "one hundred one trillion, two hundred billion, one hundred eleven million, one hundred eleven thousand, two hundred twenty".