2021120212210 has 32 divisors (see below), whose sum is σ = 4008039672384. Its totient is φ = 727676040000.

The previous prime is 2021120212147. The next prime is 2021120212217. The reversal of 2021120212210 is 122120211202.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2021120212217) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 90948396 + ... + 90970615.

It is an arithmetic number, because the mean of its divisors is an integer number (125251239762).

Almost surely, 2^{2021120212210} is an apocalyptic number.

2021120212210 is a deficient number, since it is larger than the sum of its proper divisors (1986919460174).

2021120212210 is a wasteful number, since it uses less digits than its factorization.

2021120212210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181919130.

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

Adding to 2021120212210 its reverse (122120211202), we get a palindrome (2143240423412).

The spelling of 2021120212210 in words is "two trillion, twenty-one billion, one hundred twenty million, two hundred twelve thousand, two hundred ten".