102101020212220 has 24 divisors (see below), whose sum is σ = 216535034949408. Its totient is φ = 40436047608000.

The previous prime is 102101020212181. The next prime is 102101020212253. The reversal of 102101020212220 is 22212020101201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 102101020212194 and 102101020212203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25272527736 + ... + 25272531775.

It is an arithmetic number, because the mean of its divisors is an integer number (9022293122892).

Almost surely, 2^{102101020212220} is an apocalyptic number.

102101020212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102101020212220 is an abundant number, since it is smaller than the sum of its proper divisors (114434014737188).

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

102101020212220 is a wasteful number, since it uses less digits than its factorization.

102101020212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50545059621 (or 50545059619 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 102101020212220 its reverse (22212020101201), we get a palindrome (124313040313421).

The spelling of 102101020212220 in words is "one hundred two trillion, one hundred one billion, twenty million, two hundred twelve thousand, two hundred twenty".