2021001220010 has 8 divisors (see below), whose sum is σ = 3637802196036. Its totient is φ = 808400488000.

The previous prime is 2021001220009. The next prime is 2021001220067. The reversal of 2021001220010 is 100221001202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1999670325409 + 21330894601 = 1414097^2 + 146051^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2021001219973 and 2021001220000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101050060991 + ... + 101050061010.

Almost surely, 2^{2021001220010} is an apocalyptic number.

2021001220010 is a deficient number, since it is larger than the sum of its proper divisors (1616800976026).

2021001220010 is a wasteful number, since it uses less digits than its factorization.

2021001220010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202100122008.

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

Adding to 2021001220010 its reverse (100221001202), we get a palindrome (2121222221212).

The spelling of 2021001220010 in words is "two trillion, twenty-one billion, one million, two hundred twenty thousand, ten".