212211222002122 has 16 divisors (see below), whose sum is σ = 363791299030272. Its totient is φ = 90947508387120.

The previous prime is 212211222002063. The next prime is 212211222002123. The reversal of 212211222002122 is 221200222112212.

It is a junction number, because it is equal to n+sod(n) for n = 212211222002093 and 212211222002102.

It is not an unprimeable number, because it can be changed into a prime (212211222002123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4655218 + ... + 21120925.

It is an arithmetic number, because the mean of its divisors is an integer number (22736956189392).

Almost surely, 2^{212211222002122} is an apocalyptic number.

212211222002122 is a deficient number, since it is larger than the sum of its proper divisors (151580077028150).

212211222002122 is a wasteful number, since it uses less digits than its factorization.

212211222002122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26364213.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 212211222002122 its reverse (221200222112212), we get a palindrome (433411444114334).

The spelling of 212211222002122 in words is "two hundred twelve trillion, two hundred eleven billion, two hundred twenty-two million, two thousand, one hundred twenty-two".