2021001102211 has 16 divisors (see below), whose sum is σ = 2494432430784. Its totient is φ = 1594503972864.

The previous prime is 2021001102163. The next prime is 2021001102223. The reversal of 2021001102211 is 1122011001202.

It is a cyclic number.

It is not a de Polignac number, because 2021001102211 - 2¹⁹ = 2021000577923 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 2021001102191 and 2021001102200.

It is not an unprimeable number, because it can be changed into a prime (2021001102011) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 31425106 + ... + 31489351.

It is an arithmetic number, because the mean of its divisors is an integer number (155902026924).

Almost surely, 2^{2021001102211} is an apocalyptic number.

2021001102211 is a deficient number, since it is larger than the sum of its proper divisors (473431328573).

2021001102211 is a wasteful number, since it uses less digits than its factorization.

2021001102211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62914830.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2021001102211 its reverse (1122011001202), we get a palindrome (3143012103413).

It can be divided in two parts, 2021001 and 102211, that added together give a palindrome (2123212).

The spelling of 2021001102211 in words is "two trillion, twenty-one billion, one million, one hundred two thousand, two hundred eleven".