102002010220 has 48 divisors (see below), whose sum is σ = 235608611616. Its totient is φ = 37091630400.

The previous prime is 102002010217. The next prime is 102002010223. The reversal of 102002010220 is 22010200201.

It is an interprime number because it is at equal distance from previous prime (102002010217) and next prime (102002010223).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 102002010197 and 102002010206.

It is not an unprimeable number, because it can be changed into a prime (102002010223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1889271 + ... + 1942510.

It is an arithmetic number, because the mean of its divisors is an integer number (4908512742).

Almost surely, 2^102002010220 is an apocalyptic number.

102002010220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102002010220 is an abundant number, since it is smaller than the sum of its proper divisors (133606601396).

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

102002010220 is a wasteful number, since it uses less digits than its factorization.

102002010220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3831823 (or 3831799 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 102002010220 its reverse (22010200201), we get a palindrome (124012210421).

The spelling of 102002010220 in words is "one hundred two billion, two million, ten thousand, two hundred twenty".