2021122101210 has 16 divisors (see below), whose sum is σ = 4850693042976. Its totient is φ = 538965893648.

The previous prime is 2021122101199. The next prime is 2021122101233. The reversal of 2021122101210 is 121012211202.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2021122101210.

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 7 ways as a sum of consecutive naturals, for example, 33685368324 + ... + 33685368383.

It is an arithmetic number, because the mean of its divisors is an integer number (303168315186).

Almost surely, 2^{2021122101210} is an apocalyptic number.

2021122101210 is an abundant number, since it is smaller than the sum of its proper divisors (2829570941766).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2021122101210 is a wasteful number, since it uses less digits than its factorization.

2021122101210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67370736717.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2021122101210 its reverse (121012211202), we get a palindrome (2142134312412).

The spelling of 2021122101210 in words is "two trillion, twenty-one billion, one hundred twenty-two million, one hundred one thousand, two hundred ten".