212120201010122 has 16 divisors (see below), whose sum is σ = 319419835808832. Its totient is φ = 105646926228480.

The previous prime is 212120201010079. The next prime is 212120201010127. The reversal of 212120201010122 is 221010102021212.

It is a self number, because there is not a number n which added to its sum of digits gives 212120201010122.

It is not an unprimeable number, because it can be changed into a prime (212120201010127) 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 7 ways as a sum of consecutive naturals, for example, 126790523 + ... + 128452625.

It is an arithmetic number, because the mean of its divisors is an integer number (19963739738052).

Almost surely, 2^{212120201010122} is an apocalyptic number.

212120201010122 is a deficient number, since it is larger than the sum of its proper divisors (107299634798710).

212120201010122 is a wasteful number, since it uses less digits than its factorization.

212120201010122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1910653.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212120201010122 its reverse (221010102021212), we get a palindrome (433130303031334).

The spelling of 212120201010122 in words is "two hundred twelve trillion, one hundred twenty billion, two hundred one million, ten thousand, one hundred twenty-two".