2130021212 has 12 divisors (see below), whose sum is σ = 4066404216. Its totient is φ = 968191440.

The previous prime is 2130021197. The next prime is 2130021259. The reversal of 2130021212 is 2121200312.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24204743 + ... + 24204830.

It is an arithmetic number, because the mean of its divisors is an integer number (338867018).

Almost surely, 2^2130021212 is an apocalyptic number.

2130021212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2130021212 is a deficient number, since it is larger than the sum of its proper divisors (1936383004).

2130021212 is a wasteful number, since it uses less digits than its factorization.

2130021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48409588 (or 48409586 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2130021212 is about 46152.1528425273. The cubic root of 2130021212 is about 1286.6526223183.

Adding to 2130021212 its reverse (2121200312), we get a palindrome (4251221524).

Subtracting from 2130021212 its reverse (2121200312), we obtain a square (8820900 = 2970²).

The spelling of 2130021212 in words is "two billion, one hundred thirty million, twenty-one thousand, two hundred twelve".