2021212030011 has 16 divisors (see below), whose sum is σ = 2697696261120. Its totient is φ = 1346101532640.

The previous prime is 2021212029983. The next prime is 2021212030063. The reversal of 2021212030011 is 1100302121202.

It is not a de Polignac number, because 2021212030011 - 2¹⁸ = 2021211767867 is a prime.

It is a super-2 number, since 2×2021212030011² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2021212038011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32850006 + ... + 32911476.

It is an arithmetic number, because the mean of its divisors is an integer number (168606016320).

Almost surely, 2^{2021212030011} is an apocalyptic number.

2021212030011 is a deficient number, since it is larger than the sum of its proper divisors (676484231109).

2021212030011 is a wasteful number, since it uses less digits than its factorization.

2021212030011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72466.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 2021212030011 its reverse (1100302121202), we get a palindrome (3121514151213).

The spelling of 2021212030011 in words is "two trillion, twenty-one billion, two hundred twelve million, thirty thousand, eleven".