101200221101220 has 96 divisors (see below), whose sum is σ = 298277376324480. Its totient is φ = 25566111037440.

The previous prime is 101200221101179. The next prime is 101200221101257. The reversal of 101200221101220 is 22101122002101.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 101200221101220.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127229950 + ... + 128022890.

It is an arithmetic number, because the mean of its divisors is an integer number (3107056003380).

Almost surely, 2^{101200221101220} is an apocalyptic number.

101200221101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101200221101220 is an abundant number, since it is smaller than the sum of its proper divisors (197077155223260).

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

101200221101220 is a wasteful number, since it uses less digits than its factorization.

101200221101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904925 (or 904923 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 101200221101220 its reverse (22101122002101), we get a palindrome (123301343103321).

The spelling of 101200221101220 in words is "one hundred one trillion, two hundred billion, two hundred twenty-one million, one hundred one thousand, two hundred twenty".