212101122111010 has 64 divisors (see below), whose sum is σ = 438900662433024. Its totient is φ = 73043864608000.

The previous prime is 212101122111007. The next prime is 212101122111013. The reversal of 212101122111010 is 10111221101212.

It is an interprime number because it is at equal distance from previous prime (212101122111007) and next prime (212101122111013).

It is not an unprimeable number, because it can be changed into a prime (212101122111013) 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 31 ways as a sum of consecutive naturals, for example, 414766429 + ... + 415277488.

It is an arithmetic number, because the mean of its divisors is an integer number (6857822850516).

Almost surely, 2^{212101122111010} is an apocalyptic number.

212101122111010 is an abundant number, since it is smaller than the sum of its proper divisors (226799540322014).

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

212101122111010 is a wasteful number, since it uses less digits than its factorization.

212101122111010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830044059.

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

Adding to 212101122111010 its reverse (10111221101212), we get a palindrome (222212343212222).

The spelling of 212101122111010 in words is "two hundred twelve trillion, one hundred one billion, one hundred twenty-two million, one hundred eleven thousand, ten".