2021230212 has 12 divisors (see below), whose sum is σ = 4716203856. Its totient is φ = 673743400.

The previous prime is 2021230153. The next prime is 2021230217. The reversal of 2021230212 is 2120321202.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 2021230191 and 2021230200.

It is not an unprimeable number, because it can be changed into a prime (2021230217) 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, 84217914 + ... + 84217937.

It is an arithmetic number, because the mean of its divisors is an integer number (393016988).

Almost surely, 2^2021230212 is an apocalyptic number.

It is an amenable number.

2021230212 is an abundant number, since it is smaller than the sum of its proper divisors (2694973644).

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

2021230212 is a wasteful number, since it uses less digits than its factorization.

2021230212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168435858 (or 168435856 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2021230212 is about 44958.0939542592. The cubic root of 2021230212 is about 1264.3634331543.

Adding to 2021230212 its reverse (2120321202), we get a palindrome (4141551414).

The spelling of 2021230212 in words is "two billion, twenty-one million, two hundred thirty thousand, two hundred twelve".