102102022212020 has 48 divisors (see below), whose sum is σ = 218038367807568. Its totient is φ = 40151170652160.

The previous prime is 102102022212019. The next prime is 102102022212031. The reversal of 102102022212020 is 20212220201201.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 34666589211556 + 67435433000464 = 5887834^2 + 8211908^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 102102022212020.

It is a congruent number.

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, 18517637 + ... + 23390316.

It is an arithmetic number, because the mean of its divisors is an integer number (4542465995991).

Almost surely, 2^{102102022212020} is an apocalyptic number.

102102022212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102102022212020 is an abundant number, since it is smaller than the sum of its proper divisors (115936345595548).

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

102102022212020 is a wasteful number, since it uses less digits than its factorization.

102102022212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41910020 (or 41910018 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 102102022212020 its reverse (20212220201201), we get a palindrome (122314242413221).

The spelling of 102102022212020 in words is "one hundred two trillion, one hundred two billion, twenty-two million, two hundred twelve thousand, twenty".