212011222122010 has 16 divisors (see below), whose sum is σ = 390928009572072. Its totient is φ = 82736086681600.

The previous prime is 212011222121999. The next prime is 212011222122053. The reversal of 212011222122010 is 10221222110212.

It can be written as a sum of positive squares in 4 ways, for example, as 167733762756849 + 44277459365161 = 12951207^2 + 6654131^2 .

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, 258550270471 + ... + 258550271290.

Almost surely, 2^{212011222122010} is an apocalyptic number.

212011222122010 is a deficient number, since it is larger than the sum of its proper divisors (178916787450062).

212011222122010 is a wasteful number, since it uses less digits than its factorization.

212011222122010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517100541809.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 212011222122010 its reverse (10221222110212), we get a palindrome (222232444232222).

The spelling of 212011222122010 in words is "two hundred twelve trillion, eleven billion, two hundred twenty-two million, one hundred twenty-two thousand, ten".