101221332212220 has 48 divisors (see below), whose sum is σ = 309185160213888. Its totient is φ = 24538504778560.

The previous prime is 101221332212219. The next prime is 101221332212227. The reversal of 101221332212220 is 22212233122101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101221332212227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76682826774 + ... + 76682828093.

It is an arithmetic number, because the mean of its divisors is an integer number (6441357504456).

Almost surely, 2^{101221332212220} is an apocalyptic number.

101221332212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101221332212220 is an abundant number, since it is smaller than the sum of its proper divisors (207963828001668).

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

101221332212220 is a wasteful number, since it uses less digits than its factorization.

101221332212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153365654890 (or 153365654888 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 101221332212220 its reverse (22212233122101), we get a palindrome (123433565334321).

The spelling of 101221332212220 in words is "one hundred one trillion, two hundred twenty-one billion, three hundred thirty-two million, two hundred twelve thousand, two hundred twenty".