2021021211022 has 32 divisors (see below), whose sum is σ = 3309437170944. Its totient is φ = 918004190400.

The previous prime is 2021021210983. The next prime is 2021021211031. The reversal of 2021021211022 is 2201121201202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2021021210987 and 2021021211005.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 322689063 + ... + 322695325.

It is an arithmetic number, because the mean of its divisors is an integer number (103419911592).

Almost surely, 2^{2021021211022} is an apocalyptic number.

2021021211022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2021021211022 is a deficient number, since it is larger than the sum of its proper divisors (1288415959922).

2021021211022 is a wasteful number, since it uses less digits than its factorization.

2021021211022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14184.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2021021211022 its reverse (2201121201202), we get a palindrome (4222142412224).

The spelling of 2021021211022 in words is "two trillion, twenty-one billion, twenty-one million, two hundred eleven thousand, twenty-two".