101220210200220 has 96 divisors (see below), whose sum is σ = 285199941551616. Its totient is φ = 26822608377600.

The previous prime is 101220210200203. The next prime is 101220210200267. The reversal of 101220210200220 is 22002012022101.

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 101220210200220.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2012290 + ... + 14369750.

It is an arithmetic number, because the mean of its divisors is an integer number (2970832724496).

Almost surely, 2^{101220210200220} is an apocalyptic number.

101220210200220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101220210200220 is an abundant number, since it is smaller than the sum of its proper divisors (183979731351396).

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

101220210200220 is a wasteful number, since it uses less digits than its factorization.

101220210200220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12358331 (or 12358329 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 101220210200220 its reverse (22002012022101), we get a palindrome (123222222222321).

The spelling of 101220210200220 in words is "one hundred one trillion, two hundred twenty billion, two hundred ten million, two hundred thousand, two hundred twenty".