101221146500 has 48 divisors (see below), whose sum is σ = 221948004096. Its totient is φ = 40327100000.

The previous prime is 101221146451. The next prime is 101221146539. The reversal of 101221146500 is 5641122101.

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, 277772 + ... + 528771.

It is an arithmetic number, because the mean of its divisors is an integer number (4623916752).

Almost surely, 2^101221146500 is an apocalyptic number.

101221146500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101221146500 is an abundant number, since it is smaller than the sum of its proper divisors (120726857596).

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

101221146500 is a wasteful number, since it uses less digits than its factorization.

101221146500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806813 (or 806801 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 101221146500 its reverse (5641122101), we get a palindrome (106862268601).

The spelling of 101221146500 in words is "one hundred one billion, two hundred twenty-one million, one hundred forty-six thousand, five hundred".