212121102111122 has 32 divisors (see below), whose sum is σ = 321374576160000. Its totient is φ = 104997621736528.

The previous prime is 212121102111119. The next prime is 212121102111131. The reversal of 212121102111122 is 221111201121212.

It is a happy number.

It is a super-3 number, since 3×212121102111122³ (a number of 44 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212121102111094 and 212121102111103.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1905400553 + ... + 1905511875.

It is an arithmetic number, because the mean of its divisors is an integer number (10042955505000).

Almost surely, 2^{212121102111122} is an apocalyptic number.

212121102111122 is a deficient number, since it is larger than the sum of its proper divisors (109253474048878).

212121102111122 is a wasteful number, since it uses less digits than its factorization.

212121102111122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117430.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 212121102111122 its reverse (221111201121212), we get a palindrome (433232303232334).

The spelling of 212121102111122 in words is "two hundred twelve trillion, one hundred twenty-one billion, one hundred two million, one hundred eleven thousand, one hundred twenty-two".