2021212010 has 16 divisors (see below), whose sum is σ = 3662278272. Its totient is φ = 803130000.

The previous prime is 2021212007. The next prime is 2021212031. The reversal of 2021212010 is 102121202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2021211982 and 2021212000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 667766 + ... + 670785.

It is an arithmetic number, because the mean of its divisors is an integer number (228892392).

Almost surely, 2^2021212010 is an apocalyptic number.

2021212010 is a deficient number, since it is larger than the sum of its proper divisors (1641066262).

2021212010 is a wasteful number, since it uses less digits than its factorization.

2021212010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338709.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2021212010 is about 44957.8915208443. The cubic root of 2021212010 is about 1264.3596377740.

Adding to 2021212010 its reverse (102121202), we get a palindrome (2123333212).

The spelling of 2021212010 in words is "two billion, twenty-one million, two hundred twelve thousand, ten".