2021122121110 has 64 divisors (see below), whose sum is σ = 3725999668224. Its totient is φ = 789198592000.

The previous prime is 2021122121077. The next prime is 2021122121143. The reversal of 2021122121110 is 111212211202.

It is an interprime number because it is at equal distance from previous prime (2021122121077) and next prime (2021122121143).

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 31 ways as a sum of consecutive naturals, for example, 21752472 + ... + 21845188.

It is an arithmetic number, because the mean of its divisors is an integer number (58218744816).

Almost surely, 2^{2021122121110} is an apocalyptic number.

2021122121110 is a deficient number, since it is larger than the sum of its proper divisors (1704877547114).

2021122121110 is a wasteful number, since it uses less digits than its factorization.

2021122121110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93129.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2021122121110 its reverse (111212211202), we get a palindrome (2132334332312).

The spelling of 2021122121110 in words is "two trillion, twenty-one billion, one hundred twenty-two million, one hundred twenty-one thousand, one hundred ten".