212101011221122 has 16 divisors (see below), whose sum is σ = 321986365364160. Its totient is φ = 104772236240592.

The previous prime is 212101011221101. The next prime is 212101011221153. The reversal of 212101011221122 is 221122110101212.

It is a happy number.

It is a super-2 number, since 2×212101011221122² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212101011221122.

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, 29152108 + ... + 35693800.

It is an arithmetic number, because the mean of its divisors is an integer number (20124147835260).

Almost surely, 2^{212101011221122} is an apocalyptic number.

212101011221122 is a deficient number, since it is larger than the sum of its proper divisors (109885354143038).

212101011221122 is a wasteful number, since it uses less digits than its factorization.

212101011221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6737097.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 212101011221122 its reverse (221122110101212), we get a palindrome (433223121322334).

The spelling of 212101011221122 in words is "two hundred twelve trillion, one hundred one billion, eleven million, two hundred twenty-one thousand, one hundred twenty-two".