2102012212 has 6 divisors (see below), whose sum is σ = 3678521378. Its totient is φ = 1051006104.

The previous prime is 2102012207. The next prime is 2102012219. The reversal of 2102012212 is 2122102012.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1261244196 + 840768016 = 35514^2 + 28996^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2102012192 and 2102012201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102012219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262751523 + ... + 262751530.

Almost surely, 2^2102012212 is an apocalyptic number.

It is an amenable number.

2102012212 is a deficient number, since it is larger than the sum of its proper divisors (1576509166).

2102012212 is a wasteful number, since it uses less digits than its factorization.

2102012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525503057 (or 525503055 counting only the distinct ones).

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

The square root of 2102012212 is about 45847.7067256368. The cubic root of 2102012212 is about 1280.9880497772.

Adding to 2102012212 its reverse (2122102012), we get a palindrome (4224114224).

It can be divided in two parts, 2102012 and 212, that multiplied together give a palindrome (445626544).

The spelling of 2102012212 in words is "two billion, one hundred two million, twelve thousand, two hundred twelve".