102102210220 has 48 divisors (see below), whose sum is σ = 215442188640. Its totient is φ = 40645315584.

The previous prime is 102102210209. The next prime is 102102210269. The reversal of 102102210220 is 22012201201.

It is a happy number.

102102210220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×102102210220² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102102210220.

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, 21326667 + ... + 21331453.

It is an arithmetic number, because the mean of its divisors is an integer number (4488378930).

Almost surely, 2^102102210220 is an apocalyptic number.

102102210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102102210220 is an abundant number, since it is smaller than the sum of its proper divisors (113339978420).

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

102102210220 is a wasteful number, since it uses less digits than its factorization.

102102210220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9682 (or 9680 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 102102210220 its reverse (22012201201), we get a palindrome (124114411421).

The spelling of 102102210220 in words is "one hundred two billion, one hundred two million, two hundred ten thousand, two hundred twenty".