102012020212 has 6 divisors (see below), whose sum is σ = 178521035378. Its totient is φ = 51006010104.

The previous prime is 102012020191. The next prime is 102012020213. The reversal of 102012020212 is 212020210201.

It is a happy number.

102012020212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 95928956176 + 6083064036 = 309724^2 + 77994^2 .

It is a junction number, because it is equal to n+sod(n) for n = 102012020192 and 102012020201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102012020213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12751502523 + ... + 12751502530.

Almost surely, 2^102012020212 is an apocalyptic number.

It is an amenable number.

102012020212 is a deficient number, since it is larger than the sum of its proper divisors (76509015166).

102012020212 is a wasteful number, since it uses less digits than its factorization.

102012020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25503005057 (or 25503005055 counting only the distinct ones).

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

Adding to 102012020212 its reverse (212020210201), we get a palindrome (314032230413).

The spelling of 102012020212 in words is "one hundred two billion, twelve million, twenty thousand, two hundred twelve".