212121230310110 has 16 divisors (see below), whose sum is σ = 416528961336432. Its totient is φ = 77134992840000.

The previous prime is 212121230310107. The next prime is 212121230310229. The reversal of 212121230310110 is 11013032121212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 964187410391 + ... + 964187410610.

It is an arithmetic number, because the mean of its divisors is an integer number (26033060083527).

Almost surely, 2^{212121230310110} is an apocalyptic number.

212121230310110 is a deficient number, since it is larger than the sum of its proper divisors (204407731026322).

212121230310110 is a wasteful number, since it uses less digits than its factorization.

212121230310110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1928374821019.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 212121230310110 its reverse (11013032121212), we get a palindrome (223134262431322).

The spelling of 212121230310110 in words is "two hundred twelve trillion, one hundred twenty-one billion, two hundred thirty million, three hundred ten thousand, one hundred ten".