102030242220 has 108 divisors (see below), whose sum is σ = 321379347744. Its totient is φ = 27208029600.

The previous prime is 102030242191. The next prime is 102030242227. The reversal of 102030242220 is 22242030201.

102030242220 is a `hidden beast` number, since 1 + 0 + 203 + 0 + 242 + 220 = 666.

It is a tau number, because it is divible by the number of its divisors (108).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 102030242193 and 102030242202.

It is not an unprimeable number, because it can be changed into a prime (102030242227) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 257556 + ... + 519995.

Almost surely, 2^102030242220 is an apocalyptic number.

102030242220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102030242220 is an abundant number, since it is smaller than the sum of its proper divisors (219349105524).

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

102030242220 is an frugal number, since it uses more digits than its factorization.

102030242220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777584 (or 777561 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 102030242220 its reverse (22242030201), we get a palindrome (124272272421).

The spelling of 102030242220 in words is "one hundred two billion, thirty million, two hundred forty-two thousand, two hundred twenty".