102011010210 has 48 divisors (see below), whose sum is σ = 272396976696. Its totient is φ = 26467720704.

The previous prime is 102011010151. The next prime is 102011010217. The reversal of 102011010210 is 12010110201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 69093802449 + 32917207761 = 262857^2 + 181431^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 102011010192 and 102011010201.

It is not an unprimeable number, because it can be changed into a prime (102011010217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15313639 + ... + 15320298.

Almost surely, 2^102011010210 is an apocalyptic number.

102011010210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102011010210 is an abundant number, since it is smaller than the sum of its proper divisors (170385966486).

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

102011010210 is a wasteful number, since it uses less digits than its factorization.

102011010210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30633987 (or 30633984 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 102011010210 its reverse (12010110201), we get a palindrome (114021120411).

Subtracting from 102011010210 its reverse (12010110201), we obtain a palindrome (90000900009).

The spelling of 102011010210 in words is "one hundred two billion, eleven million, ten thousand, two hundred ten".