102030212 has 12 divisors (see below), whose sum is σ = 178751580. Its totient is φ = 50958336.

The previous prime is 102030193. The next prime is 102030217. The reversal of 102030212 is 212030201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3147076 + 98883136 = 1774^2 + 9944^2 .

It is a junction number, because it is equal to n+sod(n) for n = 102030193 and 102030202.

It is not an unprimeable number, because it can be changed into a prime (102030217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10013 + ... + 17444.

It is an arithmetic number, because the mean of its divisors is an integer number (14895965).

Almost surely, 2^102030212 is an apocalyptic number.

It is an amenable number.

102030212 is a deficient number, since it is larger than the sum of its proper divisors (76721368).

102030212 is a wasteful number, since it uses less digits than its factorization.

102030212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28390 (or 28388 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 102030212 is about 10101.0005445005. Note that the first 3 decimals coincide. The cubic root of 102030212 is about 467.2789991299.

Subtracting from 102030212 its sum of digits (11), we obtain a palindrome (102030201).

Adding to 102030212 its reverse (212030201), we get a palindrome (314060413).

The spelling of 102030212 in words is "one hundred two million, thirty thousand, two hundred twelve".